diff --git a/MiraAPI/Patches/RoleGuidePatches.cs b/MiraAPI/Patches/RoleGuidePatches.cs
index 2dcd269..cd62a03 100644
--- a/MiraAPI/Patches/RoleGuidePatches.cs
+++ b/MiraAPI/Patches/RoleGuidePatches.cs
@@ -59,6 +59,7 @@ public static class RoleGuidePatches
     private static IEnumerator? _reveal;
     private static bool _pendingRefresh;
     private static int _revealedThisFrame;
+    private static IEnumerator? _perfLogger;
     private static LoadingRing? _loadingSpinner;
     private static SortingFilter _sortFilter = SortingFilter.EnabledOnly;
     private static SortingMethod _sortMethod = SortingMethod.Alphabetical;
@@ -116,6 +117,13 @@ public static class RoleGuidePatches
     [HarmonyPatch(typeof(MatchInfoGuide), nameof(MatchInfoGuide.Open))]
     public static bool Open(MatchInfoGuide __instance)
     {
+        if (_perfLogger != null)
+        {
+            Coroutines.Stop(_perfLogger);
+        }
+
+        _perfLogger = Coroutines.Start(CoLogOpenFrames(__instance.NormalModeSettings.Count == 0 ? "first-open" : "reopen"));
+        var perfWatch = System.Diagnostics.Stopwatch.StartNew();
         if (HudManager.Instance.GameMenu.IsOpen || HudManager.Instance.Chat.IsOpenOrOpening)
         {
             return false;
@@ -413,6 +421,8 @@ public static class RoleGuidePatches
             __instance.CreateHnSModeSettings();
         }
 
+        var prepMs = perfWatch.ElapsedMilliseconds;
+        perfWatch.Restart();
         PlayerControl.LocalPlayer.NetTransform.Halt();
         __instance.MatchInfoParent.SetActive(true);
         if (__instance.ControllerSelectable.Count > 0)
@@ -425,7 +435,16 @@ public static class RoleGuidePatches
             controllerManager.SetCurrentSelected(__instance.ControllerSelectable[^1]);
         }
 
+        var showMs = perfWatch.ElapsedMilliseconds;
+        perfWatch.Restart();
         __instance.SetActiveTab(regGame ? RolesTabIndex : 0);
+        Debug(
+            $"[WikiPerf] open: prep {prepMs}ms, show {showMs}ms, tab {perfWatch.ElapsedMilliseconds}ms");
+        Debug(
+            $"[WikiPerf] panels: roles {RolePanels.Count} " +
+            $"({RolePanels.Values.Count(h => h.Panel.gameObject.activeSelf)}), " +
+            $"modifiers {ModifierPanels.Count} " +
+            $"({ModifierPanels.Values.Count(h => h.Panel.gameObject.activeSelf)})");
         return false;
     }
 
@@ -627,6 +646,34 @@ public static class RoleGuidePatches
         }
     }
 
+    private static IEnumerator CoLogOpenFrames(string label)
+    {
+        var frames = 0;
+        var worst = 0f;
+        var worstIdx = 0;
+        while (frames < 90)
+        {
+            yield return null;
+            frames++;
+            var ms = Time.unscaledDeltaTime * 1000f;
+            if (ms > worst)
+            {
+                worst = ms;
+                worstIdx = frames;
+            }
+
+            if (ms > 33f)
+            {
+                Debug(
+                    $"[WikiPerf] frame +{frames}: {ms:F0}ms (reveal={_reveal != null}, " +
+                    $"panelsReady={_panelsReady}, revealedThisFrame={_revealedThisFrame})");
+            }
+        }
+
+        Debug($"[WikiPerf] done ({label}): worst {worst:F0}ms at +{worstIdx}");
+        _perfLogger = null;
+    }
+
     private static void RefreshActiveTab(bool scrollToTop)
     {
         if (!_panelsReady)