diff --git a/src/Module/Admin/Site.php b/src/Module/Admin/Site.php
index 36824d511..fbebfcb3f 100644
--- a/src/Module/Admin/Site.php
+++ b/src/Module/Admin/Site.php
@@ -134,6 +134,7 @@ class Site extends BaseAdmin
 		$temppath               = (!empty($_POST['temppath'])               ? trim($_POST['temppath'])   : '');
 		$singleuser             = (!empty($_POST['singleuser'])             ? trim($_POST['singleuser']) : '');
 		$only_tag_search        = !empty($_POST['only_tag_search']);
+		$compute_group_counts   = !empty($_POST['compute_group_counts']);
 		$check_new_version_url  = (!empty($_POST['check_new_version_url'])  ? trim($_POST['check_new_version_url']) : 'none');
 
 		$worker_queues    = (!empty($_POST['worker_queues'])                ? intval($_POST['worker_queues'])                 : 10);
@@ -304,6 +305,7 @@ class Site extends BaseAdmin
 		DI::config()->set('system', 'temppath', $temppath);
 
 		DI::config()->set('system', 'only_tag_search'  , $only_tag_search);
+		DI::config()->set('system', 'compute_group_counts', $compute_group_counts);
 
 		DI::config()->set('system', 'worker_queues'    , $worker_queues);
 		DI::config()->set('system', 'worker_fastlane'  , $worker_fastlane);
@@ -534,6 +536,7 @@ class Site extends BaseAdmin
 			'$max_display_comments'   => ['max_display_comments', DI::l10n()->t('Maximum numbers of comments per post on the display page'), DI::config()->get('system', 'max_display_comments'), DI::l10n()->t('How many comments should be shown on the single view for each post? Default value is 1000.')],
 			'$temppath'               => ['temppath', DI::l10n()->t('Temp path'), DI::config()->get('system', 'temppath'), DI::l10n()->t('If you have a restricted system where the webserver can\'t access the system temp path, enter another path here.')],
 			'$only_tag_search'        => ['only_tag_search', DI::l10n()->t('Only search in tags'), DI::config()->get('system', 'only_tag_search'), DI::l10n()->t('On large systems the text search can slow down the system extremely.')],
+			'$compute_group_counts'   => ['compute_group_counts', DI::l10n()->t('Generate counts per contact group when calculating network count'), DI::config()->get('system', 'compute_group_counts'), DI::l10n()->t('On systems with users that heavily use contact groups the query can be very expensive.')],
 
 			'$worker_queues'          => ['worker_queues', DI::l10n()->t('Maximum number of parallel workers'), DI::config()->get('system', 'worker_queues'), DI::l10n()->t('On shared hosters set this to %d. On larger systems, values of %d are great. Default value is %d.', 5, 20, 10)],
 			'$worker_fastlane'        => ['worker_fastlane', DI::l10n()->t('Enable fastlane'), DI::config()->get('system', 'worker_fastlane'), DI::l10n()->t('When enabed, the fastlane mechanism starts an additional worker if processes with higher priority are blocked by processes of lower priority.')],
diff --git a/src/Module/Notifications/Ping.php b/src/Module/Notifications/Ping.php
index 7dc215826..c09d6d0cb 100644
--- a/src/Module/Notifications/Ping.php
+++ b/src/Module/Notifications/Ping.php
@@ -113,7 +113,8 @@ class Ping extends BaseModule
 			}
 			DBA::close($items);
 
-			if ($network_count) {
+			$compute_group_counts = DI::config()->get('system','compute_group_counts');
+			if ($network_count && $compute_group_counts) {
 				// Find out how unseen network posts are spread across groups
 				$group_counts = Group::countUnseen();
 				if (DBA::isResult($group_counts)) {
diff --git a/static/settings.config.php b/static/settings.config.php
index ea7558e5f..8e62e9bb3 100644
--- a/static/settings.config.php
+++ b/static/settings.config.php
@@ -114,6 +114,10 @@ return [
 		// Default value comprises classic role names from RFC 2142.
 		'forbidden_nicknames' => 'info, marketing, sales, support, abuse, noc, security, postmaster, hostmaster, usenet, news, webmaster, www, uucp, ftp, root, sysop',
 
+		// compute_group_counts (Boolean)
+		// Compute contact group level when counting unseen network posts.
+		'compute_group_counts' => true,
+
 		// jpeg_quality (Integer)
 		// Sets the ImageMagick quality level for JPEG images. Values ranges from 50 (awful) to 100 (near perfect).
 		'jpeg_quality' => 100,
diff --git a/view/lang/C/messages.po b/view/lang/C/messages.po
index 3a29f7768..178d909df 100644
--- a/view/lang/C/messages.po
+++ b/view/lang/C/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: 2022.09-dev\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2022-06-25 22:37+0200\n"
+"POT-Creation-Date: 2022-07-07 17:00-0400\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -43,8 +43,8 @@ msgstr ""
 msgid "Access to this profile has been restricted."
 msgstr ""
 
-#: mod/cal.php:243 mod/events.php:374 src/Content/Nav.php:194
-#: src/Content/Nav.php:258 src/Module/BaseProfile.php:84
+#: mod/cal.php:243 mod/events.php:374 src/Content/Nav.php:196
+#: src/Content/Nav.php:260 src/Module/BaseProfile.php:84
 #: src/Module/BaseProfile.php:95 view/theme/frio/theme.php:229
 #: view/theme/frio/theme.php:233
 msgid "Events"
@@ -119,7 +119,7 @@ msgid "The feed for this item is unavailable."
 msgstr ""
 
 #: mod/editpost.php:38 mod/events.php:217 mod/follow.php:56 mod/follow.php:130
-#: mod/item.php:181 mod/item.php:186 mod/item.php:875 mod/message.php:69
+#: mod/item.php:181 mod/item.php:186 mod/item.php:880 mod/message.php:69
 #: mod/message.php:111 mod/notes.php:44 mod/ostatus_subscribe.php:33
 #: mod/photos.php:160 mod/photos.php:891 mod/repair_ostatus.php:31
 #: mod/settings.php:40 mod/settings.php:50 mod/settings.php:156
@@ -271,7 +271,7 @@ msgstr ""
 #: mod/follow.php:144 mod/photos.php:1004 mod/photos.php:1105 mod/tagrm.php:35
 #: mod/tagrm.php:127 mod/unfollow.php:97 src/Content/Conversation.php:386
 #: src/Module/Contact/Revoke.php:108 src/Module/RemoteFollow.php:127
-#: src/Module/Security/TwoFactor/Signout.php:125
+#: src/Module/Security/TwoFactor/SignOut.php:125
 msgid "Cancel"
 msgstr ""
 
@@ -368,7 +368,7 @@ msgstr ""
 #: src/Module/Install.php:305 src/Module/Install.php:320
 #: src/Module/Install.php:347 src/Module/Register.php:148
 #: src/Module/Security/TwoFactor/Verify.php:101
-#: src/Module/Settings/TwoFactor/Index.php:136
+#: src/Module/Settings/TwoFactor/Index.php:141
 #: src/Module/Settings/TwoFactor/Verify.php:154
 msgid "Required"
 msgstr ""
@@ -433,7 +433,7 @@ msgstr ""
 msgid "Failed to remove event"
 msgstr ""
 
-#: mod/fbrowser.php:61 src/Content/Nav.php:192 src/Module/BaseProfile.php:64
+#: mod/fbrowser.php:61 src/Content/Nav.php:194 src/Module/BaseProfile.php:64
 #: view/theme/frio/theme.php:227
 msgid "Photos"
 msgstr ""
@@ -467,8 +467,8 @@ msgstr ""
 msgid "OStatus support is disabled. Contact can't be added."
 msgstr ""
 
-#: mod/follow.php:138 src/Content/Item.php:443 src/Content/Widget.php:80
-#: src/Model/Contact.php:1103 src/Model/Contact.php:1115
+#: mod/follow.php:138 src/Content/Item.php:459 src/Content/Widget.php:80
+#: src/Model/Contact.php:1104 src/Model/Contact.php:1116
 #: view/theme/vier/theme.php:172
 msgid "Connect/Follow"
 msgstr ""
@@ -521,19 +521,19 @@ msgstr ""
 msgid "Empty post discarded."
 msgstr ""
 
-#: mod/item.php:687
+#: mod/item.php:692
 msgid "Post updated."
 msgstr ""
 
-#: mod/item.php:697 mod/item.php:702
+#: mod/item.php:702 mod/item.php:707
 msgid "Item wasn't stored."
 msgstr ""
 
-#: mod/item.php:713
+#: mod/item.php:718
 msgid "Item couldn't be fetched."
 msgstr ""
 
-#: mod/item.php:853 src/Module/Admin/Themes/Details.php:39
+#: mod/item.php:858 src/Module/Admin/Themes/Details.php:39
 #: src/Module/Admin/Themes/Index.php:59 src/Module/Debug/ItemBody.php:42
 #: src/Module/Debug/ItemBody.php:57
 msgid "Item not found."
@@ -689,7 +689,7 @@ msgstr ""
 msgid "Profile Match"
 msgstr ""
 
-#: mod/message.php:46 mod/message.php:126 src/Content/Nav.php:286
+#: mod/message.php:46 mod/message.php:126 src/Content/Nav.php:288
 msgid "New Message"
 msgstr ""
 
@@ -715,7 +715,7 @@ msgstr ""
 msgid "Discard"
 msgstr ""
 
-#: mod/message.php:133 src/Content/Nav.php:283 view/theme/frio/theme.php:234
+#: mod/message.php:133 src/Content/Nav.php:285 view/theme/frio/theme.php:234
 msgid "Messages"
 msgstr ""
 
@@ -1189,7 +1189,7 @@ msgstr ""
 msgid "Name"
 msgstr ""
 
-#: mod/settings.php:177 src/Content/Nav.php:212
+#: mod/settings.php:177 src/Content/Nav.php:214
 msgid "Home Page"
 msgstr ""
 
@@ -1387,7 +1387,7 @@ msgstr ""
 msgid "Action after import:"
 msgstr ""
 
-#: mod/settings.php:350 src/Content/Nav.php:280
+#: mod/settings.php:350 src/Content/Nav.php:282
 msgid "Mark as seen"
 msgstr ""
 
@@ -1409,15 +1409,15 @@ msgstr ""
 msgid "Friend Suggestions"
 msgstr ""
 
-#: mod/tagger.php:78 src/Content/Item.php:342 src/Model/Item.php:2728
+#: mod/tagger.php:78 src/Content/Item.php:354 src/Model/Item.php:2728
 msgid "photo"
 msgstr ""
 
-#: mod/tagger.php:78 src/Content/Item.php:337 src/Content/Item.php:346
+#: mod/tagger.php:78 src/Content/Item.php:348 src/Content/Item.php:358
 msgid "status"
 msgstr ""
 
-#: mod/tagger.php:111 src/Content/Item.php:356
+#: mod/tagger.php:111 src/Content/Item.php:368
 #, php-format
 msgid "%1$s tagged %2$s's %3$s with %4$s"
 msgstr ""
@@ -1523,7 +1523,7 @@ msgstr ""
 msgid "File upload failed."
 msgstr ""
 
-#: mod/wall_upload.php:218 src/Model/Photo.php:1085
+#: mod/wall_upload.php:218 src/Model/Photo.php:1087
 msgid "Wall Photos"
 msgstr ""
 
@@ -2250,7 +2250,7 @@ msgstr ""
 msgid "Display membership date in profile"
 msgstr ""
 
-#: src/Content/ForumManager.php:151 src/Content/Nav.php:239
+#: src/Content/ForumManager.php:151 src/Content/Nav.php:241
 #: src/Content/Text/HTML.php:903 src/Content/Widget.php:524
 msgid "Forums"
 msgstr ""
@@ -2268,55 +2268,55 @@ msgstr ""
 msgid "show more"
 msgstr ""
 
-#: src/Content/Item.php:301
+#: src/Content/Item.php:306
 #, php-format
 msgid "%1$s poked %2$s"
 msgstr ""
 
-#: src/Content/Item.php:334 src/Model/Item.php:2726
+#: src/Content/Item.php:345 src/Model/Item.php:2726
 msgid "event"
 msgstr ""
 
-#: src/Content/Item.php:422 view/theme/frio/theme.php:254
+#: src/Content/Item.php:438 view/theme/frio/theme.php:254
 msgid "Follow Thread"
 msgstr ""
 
-#: src/Content/Item.php:423 src/Model/Contact.php:1108
+#: src/Content/Item.php:439 src/Model/Contact.php:1109
 msgid "View Status"
 msgstr ""
 
-#: src/Content/Item.php:424 src/Content/Item.php:446 src/Model/Contact.php:1042
-#: src/Model/Contact.php:1100 src/Model/Contact.php:1109
+#: src/Content/Item.php:440 src/Content/Item.php:462 src/Model/Contact.php:1043
+#: src/Model/Contact.php:1101 src/Model/Contact.php:1110
 #: src/Module/Directory.php:158 src/Module/Settings/Profile/Index.php:225
 msgid "View Profile"
 msgstr ""
 
-#: src/Content/Item.php:425 src/Model/Contact.php:1110
+#: src/Content/Item.php:441 src/Model/Contact.php:1111
 msgid "View Photos"
 msgstr ""
 
-#: src/Content/Item.php:426 src/Model/Contact.php:1101
-#: src/Model/Contact.php:1111
+#: src/Content/Item.php:442 src/Model/Contact.php:1102
+#: src/Model/Contact.php:1112
 msgid "Network Posts"
 msgstr ""
 
-#: src/Content/Item.php:427 src/Model/Contact.php:1102
-#: src/Model/Contact.php:1112
+#: src/Content/Item.php:443 src/Model/Contact.php:1103
+#: src/Model/Contact.php:1113
 msgid "View Contact"
 msgstr ""
 
-#: src/Content/Item.php:428 src/Model/Contact.php:1113
+#: src/Content/Item.php:444 src/Model/Contact.php:1114
 msgid "Send PM"
 msgstr ""
 
-#: src/Content/Item.php:429 src/Module/Admin/Blocklist/Contact.php:100
+#: src/Content/Item.php:445 src/Module/Admin/Blocklist/Contact.php:100
 #: src/Module/Admin/Users/Active.php:140 src/Module/Admin/Users/Index.php:154
 #: src/Module/Contact.php:398 src/Module/Contact/Profile.php:348
 #: src/Module/Contact/Profile.php:449
 msgid "Block"
 msgstr ""
 
-#: src/Content/Item.php:430 src/Module/Contact.php:399
+#: src/Content/Item.php:446 src/Module/Contact.php:399
 #: src/Module/Contact/Profile.php:349 src/Module/Contact/Profile.php:457
 #: src/Module/Notifications/Introductions.php:132
 #: src/Module/Notifications/Introductions.php:204
@@ -2324,11 +2324,11 @@ msgstr ""
 msgid "Ignore"
 msgstr ""
 
-#: src/Content/Item.php:434 src/Object/Post.php:455
+#: src/Content/Item.php:450 src/Object/Post.php:455
 msgid "Languages"
 msgstr ""
 
-#: src/Content/Item.php:438 src/Model/Contact.php:1114
+#: src/Content/Item.php:454 src/Model/Contact.php:1115
 msgid "Poke"
 msgstr ""
 
@@ -2348,252 +2348,252 @@ msgstr ""
 msgid "@name, !forum, #tags, content"
 msgstr ""
 
-#: src/Content/Nav.php:183 src/Module/Security/Login.php:144
+#: src/Content/Nav.php:185 src/Module/Security/Login.php:144
 msgid "Logout"
 msgstr ""
 
-#: src/Content/Nav.php:183
+#: src/Content/Nav.php:185
 msgid "End this session"
 msgstr ""
 
-#: src/Content/Nav.php:185 src/Module/Bookmarklet.php:44
+#: src/Content/Nav.php:187 src/Module/Bookmarklet.php:44
 #: src/Module/Security/Login.php:145
 msgid "Login"
 msgstr ""
 
-#: src/Content/Nav.php:185
+#: src/Content/Nav.php:187
 msgid "Sign in"
 msgstr ""
 
-#: src/Content/Nav.php:190 src/Module/BaseProfile.php:56
+#: src/Content/Nav.php:192 src/Module/BaseProfile.php:56
 #: src/Module/Contact.php:433 src/Module/Contact/Profile.php:380
-#: src/Module/Settings/TwoFactor/Index.php:115 view/theme/frio/theme.php:225
+#: src/Module/Settings/TwoFactor/Index.php:120 view/theme/frio/theme.php:225
 msgid "Status"
 msgstr ""
 
-#: src/Content/Nav.php:190 src/Content/Nav.php:273
+#: src/Content/Nav.php:192 src/Content/Nav.php:275
 #: view/theme/frio/theme.php:225
 msgid "Your posts and conversations"
 msgstr ""
 
-#: src/Content/Nav.php:191 src/Module/BaseProfile.php:48
+#: src/Content/Nav.php:193 src/Module/BaseProfile.php:48
 #: src/Module/BaseSettings.php:55 src/Module/Contact.php:457
 #: src/Module/Contact/Profile.php:382 src/Module/Profile/Profile.php:241
 #: src/Module/Welcome.php:57 view/theme/frio/theme.php:226
 msgid "Profile"
 msgstr ""
 
-#: src/Content/Nav.php:191 view/theme/frio/theme.php:226
+#: src/Content/Nav.php:193 view/theme/frio/theme.php:226
 msgid "Your profile page"
 msgstr ""
 
-#: src/Content/Nav.php:192 view/theme/frio/theme.php:227
+#: src/Content/Nav.php:194 view/theme/frio/theme.php:227
 msgid "Your photos"
 msgstr ""
 
-#: src/Content/Nav.php:193 src/Module/BaseProfile.php:72
+#: src/Content/Nav.php:195 src/Module/BaseProfile.php:72
 #: src/Module/BaseProfile.php:75 src/Module/Contact.php:449
 #: view/theme/frio/theme.php:228
 msgid "Media"
 msgstr ""
 
-#: src/Content/Nav.php:193 view/theme/frio/theme.php:228
+#: src/Content/Nav.php:195 view/theme/frio/theme.php:228
 msgid "Your postings with media"
 msgstr ""
 
-#: src/Content/Nav.php:194 view/theme/frio/theme.php:229
+#: src/Content/Nav.php:196 view/theme/frio/theme.php:229
 msgid "Your events"
 msgstr ""
 
-#: src/Content/Nav.php:195
+#: src/Content/Nav.php:197
 msgid "Personal notes"
 msgstr ""
 
-#: src/Content/Nav.php:195
+#: src/Content/Nav.php:197
 msgid "Your personal notes"
 msgstr ""
 
-#: src/Content/Nav.php:212 src/Content/Nav.php:273
+#: src/Content/Nav.php:214 src/Content/Nav.php:275
 msgid "Home"
 msgstr ""
 
-#: src/Content/Nav.php:216 src/Module/Register.php:168
+#: src/Content/Nav.php:218 src/Module/Register.php:168
 #: src/Module/Security/Login.php:105
 msgid "Register"
 msgstr ""
 
-#: src/Content/Nav.php:216
+#: src/Content/Nav.php:218
 msgid "Create an account"
 msgstr ""
 
-#: src/Content/Nav.php:222 src/Module/Help.php:67
+#: src/Content/Nav.php:224 src/Module/Help.php:67
 #: src/Module/Settings/TwoFactor/AppSpecific.php:127
-#: src/Module/Settings/TwoFactor/Index.php:114
+#: src/Module/Settings/TwoFactor/Index.php:119
 #: src/Module/Settings/TwoFactor/Recovery.php:105
 #: src/Module/Settings/TwoFactor/Verify.php:145 view/theme/vier/theme.php:217
 msgid "Help"
 msgstr ""
 
-#: src/Content/Nav.php:222
+#: src/Content/Nav.php:224
 msgid "Help and documentation"
 msgstr ""
 
-#: src/Content/Nav.php:226
+#: src/Content/Nav.php:228
 msgid "Apps"
 msgstr ""
 
-#: src/Content/Nav.php:226
+#: src/Content/Nav.php:228
 msgid "Addon applications, utilities, games"
 msgstr ""
 
-#: src/Content/Nav.php:230 src/Content/Text/HTML.php:888
+#: src/Content/Nav.php:232 src/Content/Text/HTML.php:888
 #: src/Module/Admin/Logs/View.php:87 src/Module/Search/Index.php:112
 msgid "Search"
 msgstr ""
 
-#: src/Content/Nav.php:230
+#: src/Content/Nav.php:232
 msgid "Search site content"
 msgstr ""
 
-#: src/Content/Nav.php:233 src/Content/Text/HTML.php:897
+#: src/Content/Nav.php:235 src/Content/Text/HTML.php:897
 msgid "Full Text"
 msgstr ""
 
-#: src/Content/Nav.php:234 src/Content/Text/HTML.php:898
+#: src/Content/Nav.php:236 src/Content/Text/HTML.php:898
 #: src/Content/Widget/TagCloud.php:68
 msgid "Tags"
 msgstr ""
 
-#: src/Content/Nav.php:235 src/Content/Nav.php:294
+#: src/Content/Nav.php:237 src/Content/Nav.php:296
 #: src/Content/Text/HTML.php:899 src/Module/BaseProfile.php:125
 #: src/Module/BaseProfile.php:128 src/Module/Contact.php:370
 #: src/Module/Contact.php:464 view/theme/frio/theme.php:236
 msgid "Contacts"
 msgstr ""
 
-#: src/Content/Nav.php:254
+#: src/Content/Nav.php:256
 msgid "Community"
 msgstr ""
 
-#: src/Content/Nav.php:254
+#: src/Content/Nav.php:256
 msgid "Conversations on this and other servers"
 msgstr ""
 
-#: src/Content/Nav.php:258 src/Module/BaseProfile.php:87
+#: src/Content/Nav.php:260 src/Module/BaseProfile.php:87
 #: src/Module/BaseProfile.php:98 view/theme/frio/theme.php:233
 msgid "Events and Calendar"
 msgstr ""
 
-#: src/Content/Nav.php:261
+#: src/Content/Nav.php:263
 msgid "Directory"
 msgstr ""
 
-#: src/Content/Nav.php:261
+#: src/Content/Nav.php:263
 msgid "People directory"
 msgstr ""
 
-#: src/Content/Nav.php:263 src/Module/BaseAdmin.php:88
+#: src/Content/Nav.php:265 src/Module/BaseAdmin.php:88
 msgid "Information"
 msgstr ""
 
-#: src/Content/Nav.php:263
+#: src/Content/Nav.php:265
 msgid "Information about this friendica instance"
 msgstr ""
 
-#: src/Content/Nav.php:266 src/Module/Admin/Tos.php:76
+#: src/Content/Nav.php:268 src/Module/Admin/Tos.php:76
 #: src/Module/BaseAdmin.php:99 src/Module/Register.php:176
 #: src/Module/Tos.php:87
 msgid "Terms of Service"
 msgstr ""
 
-#: src/Content/Nav.php:266
+#: src/Content/Nav.php:268
 msgid "Terms of Service of this Friendica instance"
 msgstr ""
 
-#: src/Content/Nav.php:271 view/theme/frio/theme.php:232
+#: src/Content/Nav.php:273 view/theme/frio/theme.php:232
 msgid "Network"
 msgstr ""
 
-#: src/Content/Nav.php:271 view/theme/frio/theme.php:232
+#: src/Content/Nav.php:273 view/theme/frio/theme.php:232
 msgid "Conversations from your friends"
 msgstr ""
 
-#: src/Content/Nav.php:277
+#: src/Content/Nav.php:279
 msgid "Introductions"
 msgstr ""
 
-#: src/Content/Nav.php:277
+#: src/Content/Nav.php:279
 msgid "Friend Requests"
 msgstr ""
 
-#: src/Content/Nav.php:278 src/Module/BaseNotifications.php:148
+#: src/Content/Nav.php:280 src/Module/BaseNotifications.php:148
 #: src/Module/Notifications/Introductions.php:73
 msgid "Notifications"
 msgstr ""
 
-#: src/Content/Nav.php:279
+#: src/Content/Nav.php:281
 msgid "See all notifications"
 msgstr ""
 
-#: src/Content/Nav.php:280
+#: src/Content/Nav.php:282
 msgid "Mark all system notifications as seen"
 msgstr ""
 
-#: src/Content/Nav.php:283 view/theme/frio/theme.php:234
+#: src/Content/Nav.php:285 view/theme/frio/theme.php:234
 msgid "Private mail"
 msgstr ""
 
-#: src/Content/Nav.php:284
+#: src/Content/Nav.php:286
 msgid "Inbox"
 msgstr ""
 
-#: src/Content/Nav.php:285
+#: src/Content/Nav.php:287
 msgid "Outbox"
 msgstr ""
 
-#: src/Content/Nav.php:289
+#: src/Content/Nav.php:291
 msgid "Accounts"
 msgstr ""
 
-#: src/Content/Nav.php:289
+#: src/Content/Nav.php:291
 msgid "Manage other pages"
 msgstr ""
 
-#: src/Content/Nav.php:292 src/Module/Admin/Addons/Details.php:114
+#: src/Content/Nav.php:294 src/Module/Admin/Addons/Details.php:114
 #: src/Module/Admin/Themes/Details.php:93 src/Module/BaseSettings.php:122
 #: src/Module/Welcome.php:52 view/theme/frio/theme.php:235
 msgid "Settings"
 msgstr ""
 
-#: src/Content/Nav.php:292 view/theme/frio/theme.php:235
+#: src/Content/Nav.php:294 view/theme/frio/theme.php:235
 msgid "Account settings"
 msgstr ""
 
-#: src/Content/Nav.php:294 view/theme/frio/theme.php:236
+#: src/Content/Nav.php:296 view/theme/frio/theme.php:236
 msgid "Manage/edit friends and contacts"
 msgstr ""
 
-#: src/Content/Nav.php:299 src/Module/BaseAdmin.php:129
+#: src/Content/Nav.php:301 src/Module/BaseAdmin.php:129
 msgid "Admin"
 msgstr ""
 
-#: src/Content/Nav.php:299
+#: src/Content/Nav.php:301
 msgid "Site setup and configuration"
 msgstr ""
 
-#: src/Content/Nav.php:302
+#: src/Content/Nav.php:304
 msgid "Navigation"
 msgstr ""
 
-#: src/Content/Nav.php:302
+#: src/Content/Nav.php:304
 msgid "Site map"
 msgstr ""
 
-#: src/Content/OEmbed.php:299
+#: src/Content/OEmbed.php:317
 msgid "Embedding disabled"
 msgstr ""
 
-#: src/Content/OEmbed.php:417
+#: src/Content/OEmbed.php:441
 msgid "Embedded content"
 msgstr ""
 
@@ -2613,39 +2613,39 @@ msgstr ""
 msgid "last"
 msgstr ""
 
-#: src/Content/Text/BBCode.php:990 src/Content/Text/BBCode.php:1808
-#: src/Content/Text/BBCode.php:1809
+#: src/Content/Text/BBCode.php:998 src/Content/Text/BBCode.php:1833
+#: src/Content/Text/BBCode.php:1834
 msgid "Image/photo"
 msgstr ""
 
-#: src/Content/Text/BBCode.php:1163
+#: src/Content/Text/BBCode.php:1188
 #, php-format
 msgid ""
 "<a href=\"%1$s\" target=\"_blank\" rel=\"noopener noreferrer\">%2$s</a> %3$s"
 msgstr ""
 
-#: src/Content/Text/BBCode.php:1188 src/Model/Item.php:3301
+#: src/Content/Text/BBCode.php:1213 src/Model/Item.php:3301
 #: src/Model/Item.php:3307 src/Model/Item.php:3308
 msgid "Link to source"
 msgstr ""
 
-#: src/Content/Text/BBCode.php:1726 src/Content/Text/HTML.php:940
+#: src/Content/Text/BBCode.php:1751 src/Content/Text/HTML.php:940
 msgid "Click to open/close"
 msgstr ""
 
-#: src/Content/Text/BBCode.php:1757
+#: src/Content/Text/BBCode.php:1782
 msgid "$1 wrote:"
 msgstr ""
 
-#: src/Content/Text/BBCode.php:1813 src/Content/Text/BBCode.php:1814
+#: src/Content/Text/BBCode.php:1838 src/Content/Text/BBCode.php:1839
 msgid "Encrypted content"
 msgstr ""
 
-#: src/Content/Text/BBCode.php:2032
+#: src/Content/Text/BBCode.php:2057
 msgid "Invalid source protocol"
 msgstr ""
 
-#: src/Content/Text/BBCode.php:2047
+#: src/Content/Text/BBCode.php:2072
 msgid "Invalid link protocol"
 msgstr ""
 
@@ -2780,7 +2780,7 @@ msgstr ""
 msgid "Organisations"
 msgstr ""
 
-#: src/Content/Widget.php:523 src/Model/Contact.php:1538
+#: src/Content/Widget.php:523 src/Model/Contact.php:1537
 msgid "News"
 msgstr ""
 
@@ -3455,12 +3455,12 @@ msgid ""
 "to version 2021.01 and wait until the postupdate finished version 1383."
 msgstr ""
 
-#: src/Core/Update.php:152
+#: src/Core/Update.php:153
 #, php-format
 msgid "%s: executing pre update %d"
 msgstr ""
 
-#: src/Core/Update.php:190
+#: src/Core/Update.php:191
 #, php-format
 msgid "%s: executing post update %d"
 msgstr ""
@@ -3470,7 +3470,7 @@ msgstr ""
 msgid "Update %s failed. See error logs."
 msgstr ""
 
-#: src/Core/Update.php:314
+#: src/Core/Update.php:315
 #, php-format
 msgid ""
 "\n"
@@ -3482,16 +3482,16 @@ msgid ""
 "might be invalid."
 msgstr ""
 
-#: src/Core/Update.php:320
+#: src/Core/Update.php:321
 #, php-format
 msgid "The error message is\\n[pre]%s[/pre]"
 msgstr ""
 
-#: src/Core/Update.php:324 src/Core/Update.php:366
+#: src/Core/Update.php:325 src/Core/Update.php:367
 msgid "[Friendica Notify] Database update"
 msgstr ""
 
-#: src/Core/Update.php:360
+#: src/Core/Update.php:361
 #, php-format
 msgid ""
 "\n"
@@ -3608,81 +3608,81 @@ msgstr ""
 msgid "Legacy module file not found: %s"
 msgstr ""
 
-#: src/Model/Contact.php:1104 src/Model/Contact.php:1116
+#: src/Model/Contact.php:1105 src/Model/Contact.php:1117
 msgid "UnFollow"
 msgstr ""
 
-#: src/Model/Contact.php:1122 src/Module/Admin/Users/Pending.php:107
+#: src/Model/Contact.php:1123 src/Module/Admin/Users/Pending.php:107
 #: src/Module/Notifications/Introductions.php:130
 #: src/Module/Notifications/Introductions.php:202
 msgid "Approve"
 msgstr ""
 
-#: src/Model/Contact.php:1534
+#: src/Model/Contact.php:1533
 msgid "Organisation"
 msgstr ""
 
-#: src/Model/Contact.php:1542
+#: src/Model/Contact.php:1541
 msgid "Forum"
 msgstr ""
 
-#: src/Model/Contact.php:2625
+#: src/Model/Contact.php:2630
 msgid "Disallowed profile URL."
 msgstr ""
 
-#: src/Model/Contact.php:2630 src/Module/Friendica.php:81
+#: src/Model/Contact.php:2635 src/Module/Friendica.php:81
 msgid "Blocked domain"
 msgstr ""
 
-#: src/Model/Contact.php:2635
+#: src/Model/Contact.php:2640
 msgid "Connect URL missing."
 msgstr ""
 
-#: src/Model/Contact.php:2644
+#: src/Model/Contact.php:2649
 msgid ""
 "The contact could not be added. Please check the relevant network "
 "credentials in your Settings -> Social Networks page."
 msgstr ""
 
-#: src/Model/Contact.php:2686
+#: src/Model/Contact.php:2691
 msgid "The profile address specified does not provide adequate information."
 msgstr ""
 
-#: src/Model/Contact.php:2688
+#: src/Model/Contact.php:2693
 msgid "No compatible communication protocols or feeds were discovered."
 msgstr ""
 
-#: src/Model/Contact.php:2691
+#: src/Model/Contact.php:2696
 msgid "An author or name was not found."
 msgstr ""
 
-#: src/Model/Contact.php:2694
+#: src/Model/Contact.php:2699
 msgid "No browser URL could be matched to this address."
 msgstr ""
 
-#: src/Model/Contact.php:2697
+#: src/Model/Contact.php:2702
 msgid ""
 "Unable to match @-style Identity Address with a known protocol or email "
 "contact."
 msgstr ""
 
-#: src/Model/Contact.php:2698
+#: src/Model/Contact.php:2703
 msgid "Use mailto: in front of address to force email check."
 msgstr ""
 
-#: src/Model/Contact.php:2704
+#: src/Model/Contact.php:2709
 msgid ""
 "The profile address specified belongs to a network which has been disabled "
 "on this site."
 msgstr ""
 
-#: src/Model/Contact.php:2709
+#: src/Model/Contact.php:2714
 msgid ""
 "Limited profile. This person will be unable to receive direct/personal "
 "notifications from you."
 msgstr ""
 
-#: src/Model/Contact.php:2768
+#: src/Model/Contact.php:2773
 msgid "Unable to retrieve contact information."
 msgstr ""
 
@@ -5866,87 +5866,97 @@ msgstr ""
 msgid "On large systems the text search can slow down the system extremely."
 msgstr ""
 
-#: src/Module/Admin/Site.php:538
+#: src/Module/Admin/Site.php:537
+msgid "Generate counts per contact group when calculating network count"
+msgstr ""
+
+#: src/Module/Admin/Site.php:537
+msgid ""
+"On systems with users that heavily use contact groups the query can be very "
+"expensive."
+msgstr ""
+
+#: src/Module/Admin/Site.php:539
 msgid "Maximum number of parallel workers"
 msgstr ""
 
-#: src/Module/Admin/Site.php:538
+#: src/Module/Admin/Site.php:539
 #, php-format
 msgid ""
 "On shared hosters set this to %d. On larger systems, values of %d are great. "
 "Default value is %d."
 msgstr ""
 
-#: src/Module/Admin/Site.php:539
+#: src/Module/Admin/Site.php:540
 msgid "Enable fastlane"
 msgstr ""
 
-#: src/Module/Admin/Site.php:539
+#: src/Module/Admin/Site.php:540
 msgid ""
 "When enabed, the fastlane mechanism starts an additional worker if processes "
 "with higher priority are blocked by processes of lower priority."
 msgstr ""
 
-#: src/Module/Admin/Site.php:541
+#: src/Module/Admin/Site.php:542
 msgid "Direct relay transfer"
 msgstr ""
 
-#: src/Module/Admin/Site.php:541
+#: src/Module/Admin/Site.php:542
 msgid ""
 "Enables the direct transfer to other servers without using the relay servers"
 msgstr ""
 
-#: src/Module/Admin/Site.php:542
+#: src/Module/Admin/Site.php:543
 msgid "Relay scope"
 msgstr ""
 
-#: src/Module/Admin/Site.php:542
+#: src/Module/Admin/Site.php:543
 msgid ""
 "Can be \"all\" or \"tags\". \"all\" means that every public post should be "
 "received. \"tags\" means that only posts with selected tags should be "
 "received."
 msgstr ""
 
-#: src/Module/Admin/Site.php:542 src/Module/Contact/Profile.php:273
-#: src/Module/Settings/TwoFactor/Index.php:121
+#: src/Module/Admin/Site.php:543 src/Module/Contact/Profile.php:273
+#: src/Module/Settings/TwoFactor/Index.php:126
 msgid "Disabled"
 msgstr ""
 
-#: src/Module/Admin/Site.php:542
+#: src/Module/Admin/Site.php:543
 msgid "all"
 msgstr ""
 
-#: src/Module/Admin/Site.php:542
+#: src/Module/Admin/Site.php:543
 msgid "tags"
 msgstr ""
 
-#: src/Module/Admin/Site.php:543
+#: src/Module/Admin/Site.php:544
 msgid "Server tags"
 msgstr ""
 
-#: src/Module/Admin/Site.php:543
+#: src/Module/Admin/Site.php:544
 msgid "Comma separated list of tags for the \"tags\" subscription."
 msgstr ""
 
-#: src/Module/Admin/Site.php:544
+#: src/Module/Admin/Site.php:545
 msgid "Deny Server tags"
 msgstr ""
 
-#: src/Module/Admin/Site.php:544
+#: src/Module/Admin/Site.php:545
 msgid "Comma separated list of tags that are rejected."
 msgstr ""
 
-#: src/Module/Admin/Site.php:545
+#: src/Module/Admin/Site.php:546
 msgid "Allow user tags"
 msgstr ""
 
-#: src/Module/Admin/Site.php:545
+#: src/Module/Admin/Site.php:546
 msgid ""
 "If enabled, the tags from the saved searches will used for the \"tags\" "
 "subscription in addition to the \"relay_server_tags\"."
 msgstr ""
 
-#: src/Module/Admin/Site.php:548
+#: src/Module/Admin/Site.php:549
 msgid "Start Relocation"
 msgstr ""
 
@@ -6640,7 +6650,7 @@ msgid "Account"
 msgstr ""
 
 #: src/Module/BaseSettings.php:48 src/Module/Security/TwoFactor/Verify.php:96
-#: src/Module/Settings/TwoFactor/Index.php:113
+#: src/Module/Settings/TwoFactor/Index.php:118
 msgid "Two-factor authentication"
 msgstr ""
 
@@ -7089,7 +7099,7 @@ msgid ""
 msgstr ""
 
 #: src/Module/Contact/Profile.php:378
-#: src/Module/Settings/TwoFactor/Index.php:135
+#: src/Module/Settings/TwoFactor/Index.php:140
 msgid "Actions"
 msgstr ""
 
@@ -8580,10 +8590,10 @@ msgid "privacy policy"
 msgstr ""
 
 #: src/Module/Security/Logout.php:83
-#: src/Module/Security/TwoFactor/Signout.php:78
-#: src/Module/Security/TwoFactor/Signout.php:86
-#: src/Module/Security/TwoFactor/Signout.php:108
-#: src/Module/Security/TwoFactor/Signout.php:115
+#: src/Module/Security/TwoFactor/SignOut.php:78
+#: src/Module/Security/TwoFactor/SignOut.php:86
+#: src/Module/Security/TwoFactor/SignOut.php:108
+#: src/Module/Security/TwoFactor/SignOut.php:115
 msgid "Logged out."
 msgstr ""
 
@@ -8638,21 +8648,21 @@ msgstr ""
 msgid "Submit recovery code and complete login"
 msgstr ""
 
-#: src/Module/Security/TwoFactor/Signout.php:122
+#: src/Module/Security/TwoFactor/SignOut.php:122
 msgid "Sign out of this browser?"
 msgstr ""
 
-#: src/Module/Security/TwoFactor/Signout.php:123
+#: src/Module/Security/TwoFactor/SignOut.php:123
 msgid ""
 "<p>If you trust this browser, you will not be asked for verification code "
 "the next time you sign in.</p>"
 msgstr ""
 
-#: src/Module/Security/TwoFactor/Signout.php:124
+#: src/Module/Security/TwoFactor/SignOut.php:124
 msgid "Sign out"
 msgstr ""
 
-#: src/Module/Security/TwoFactor/Signout.php:126
+#: src/Module/Security/TwoFactor/SignOut.php:126
 msgid "Trust and sign out"
 msgstr ""
 
@@ -9704,95 +9714,95 @@ msgstr ""
 msgid "Generate"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:68
+#: src/Module/Settings/TwoFactor/Index.php:69
 msgid "Two-factor authentication successfully disabled."
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:116
+#: src/Module/Settings/TwoFactor/Index.php:121
 msgid ""
 "<p>Use an application on a mobile device to get two-factor authentication "
 "codes when prompted on login.</p>"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:120
+#: src/Module/Settings/TwoFactor/Index.php:125
 msgid "Authenticator app"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:121
+#: src/Module/Settings/TwoFactor/Index.php:126
 msgid "Configured"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:121
+#: src/Module/Settings/TwoFactor/Index.php:126
 msgid "Not Configured"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:122
+#: src/Module/Settings/TwoFactor/Index.php:127
 msgid "<p>You haven't finished configuring your authenticator app.</p>"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:123
+#: src/Module/Settings/TwoFactor/Index.php:128
 msgid "<p>Your authenticator app is correctly configured.</p>"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:125
+#: src/Module/Settings/TwoFactor/Index.php:130
 msgid "Recovery codes"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:126
+#: src/Module/Settings/TwoFactor/Index.php:131
 msgid "Remaining valid codes"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:128
+#: src/Module/Settings/TwoFactor/Index.php:133
 msgid ""
 "<p>These one-use codes can replace an authenticator app code in case you "
 "have lost access to it.</p>"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:130
+#: src/Module/Settings/TwoFactor/Index.php:135
 msgid "App-specific passwords"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:131
+#: src/Module/Settings/TwoFactor/Index.php:136
 msgid "Generated app-specific passwords"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:133
+#: src/Module/Settings/TwoFactor/Index.php:138
 msgid ""
 "<p>These randomly generated passwords allow you to authenticate on apps not "
 "supporting two-factor authentication.</p>"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:136
+#: src/Module/Settings/TwoFactor/Index.php:141
 msgid "Current password:"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:136
+#: src/Module/Settings/TwoFactor/Index.php:141
 msgid ""
 "You need to provide your current password to change two-factor "
 "authentication settings."
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:137
+#: src/Module/Settings/TwoFactor/Index.php:142
 msgid "Enable two-factor authentication"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:138
+#: src/Module/Settings/TwoFactor/Index.php:143
 msgid "Disable two-factor authentication"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:139
+#: src/Module/Settings/TwoFactor/Index.php:144
 msgid "Show recovery codes"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:140
+#: src/Module/Settings/TwoFactor/Index.php:145
 msgid "Manage app-specific passwords"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:141
+#: src/Module/Settings/TwoFactor/Index.php:146
 msgid "Manage trusted browsers"
 msgstr ""
 
-#: src/Module/Settings/TwoFactor/Index.php:142
+#: src/Module/Settings/TwoFactor/Index.php:147
 msgid "Finish app configuration"
 msgstr ""
 
diff --git a/view/templates/admin/site.tpl b/view/templates/admin/site.tpl
index f23cc521e..88fc11336 100644
--- a/view/templates/admin/site.tpl
+++ b/view/templates/admin/site.tpl
@@ -107,6 +107,7 @@
 		<div class="submit"><input type="submit" name="page_site" value="{{$submit}}"/></div>
 
 		<h2>{{$performance}}</h2>
+		{{include file="field_checkbox.tpl" field=$compute_group_counts}}
 		{{include file="field_checkbox.tpl" field=$only_tag_search}}
 		{{include file="field_input.tpl" field=$max_comments}}
 		{{include file="field_input.tpl" field=$max_display_comments}}
diff --git a/view/theme/frio/templates/admin/site.tpl b/view/theme/frio/templates/admin/site.tpl
index f6a01b541..bf3f1d537 100644
--- a/view/theme/frio/templates/admin/site.tpl
+++ b/view/theme/frio/templates/admin/site.tpl
@@ -242,6 +242,7 @@
 				</div>
 				<div id="admin-settings-performance-collapse" class="panel-collapse collapse" role="tabpanel" aria-labelledby="admin-settings-performance">
 					<div class="panel-body">
+						{{include file="field_checkbox.tpl" field=$compute_group_counts}}
 						{{include file="field_checkbox.tpl" field=$only_tag_search}}
 						{{include file="field_input.tpl" field=$max_comments}}
 						{{include file="field_input.tpl" field=$max_display_comments}}