diff --git a/js/ui/main.js b/js/ui/main.js
index 2d8804aca..b6f54da9e 100644
--- a/js/ui/main.js
+++ b/js/ui/main.js
@@ -329,12 +329,16 @@ function _initializeUI() {
             });
         }
 
-        let credentials = new Gio.Credentials();
-        if (credentials.get_unix_user() === 0) {
-            notify(_('Logged in as a privileged user'),
-                   _('Running a session as a privileged user should be avoided for security reasons. If possible, you should log in as a normal user.'));
-        } else if (sessionMode.showWelcomeDialog) {
-            _handleShowWelcomeScreen();
+        const perfModuleName = GLib.getenv('SHELL_PERF_MODULE');
+        if (!perfModuleName) {
+            let credentials = new Gio.Credentials();
+            if (credentials.get_unix_user() === 0) {
+                notify(
+                    _('Logged in as a privileged user'),
+                    _('Running a session as a privileged user should be avoided for security reasons. If possible, you should log in as a normal user.'));
+            } else if (sessionMode.showWelcomeDialog) {
+                _handleShowWelcomeScreen();
+            }
         }
 
         if (sessionMode.currentMode !== 'gdm' &&
@@ -343,7 +347,6 @@ function _initializeUI() {
 
         LoginManager.registerSessionWithGDM();
 
-        let perfModuleName = GLib.getenv("SHELL_PERF_MODULE");
         if (perfModuleName) {
             let perfOutput = GLib.getenv("SHELL_PERF_OUTPUT");
             let module = eval(`imports.perf.${perfModuleName};`);