diff --git a/frontend/src/html/popups.html b/frontend/src/html/popups.html
index bbe596c99..686dd1306 100644
--- a/frontend/src/html/popups.html
+++ b/frontend/src/html/popups.html
@@ -68,6 +68,7 @@
     <button class="xpBarTest">xp bar test</button>
     <button class="toggleFakeChartData">toggle fake chart data</button>
     <button class="toggleCaretDebug">toggle caret debug</button>
+    <button class="disableSlowTimerFail">disable slow timer fail</button>
   </div>
 </dialog>
 
diff --git a/frontend/src/ts/modals/dev-options.ts b/frontend/src/ts/modals/dev-options.ts
index 36c632e53..9742c6e88 100644
--- a/frontend/src/ts/modals/dev-options.ts
+++ b/frontend/src/ts/modals/dev-options.ts
@@ -9,6 +9,7 @@ import { update } from "../elements/xp-bar";
 import { toggleUserFakeChartData } from "../test/result";
 import { toggleCaretDebug } from "../utils/caret";
 import { getInputElement } from "../input/input-element";
+import { disableSlowTimerFail } from "../test/test-timer";
 
 let mediaQueryDebugLevel = 0;
 
@@ -94,6 +95,11 @@ async function setup(modalEl: HTMLElement): Promise<void> {
   modalEl.querySelector(".toggleCaretDebug")?.addEventListener("click", () => {
     toggleCaretDebug();
   });
+  modalEl
+    .querySelector(".disableSlowTimerFail")
+    ?.addEventListener("click", () => {
+      disableSlowTimerFail();
+    });
 }
 
 const modal = new AnimatedModal({
diff --git a/frontend/src/ts/test/test-timer.ts b/frontend/src/ts/test/test-timer.ts
index 3418ebc3d..e0acebbd4 100644
--- a/frontend/src/ts/test/test-timer.ts
+++ b/frontend/src/ts/test/test-timer.ts
@@ -32,6 +32,11 @@ let timer: NodeJS.Timeout | null = null;
 const interval = 1000;
 let expected = 0;
 
+let slowTimerFailEnabled = true;
+export function disableSlowTimerFail(): void {
+  slowTimerFailEnabled = false;
+}
+
 let timerDebug = false;
 export function enableTimerDebug(): void {
   timerDebug = true;
@@ -234,30 +239,32 @@ export async function start(): Promise<void> {
       expected: expected,
       nextDelay: delay,
     });
-    if (
-      (Config.mode === "time" && Config.time < 130 && Config.time > 0) ||
-      (Config.mode === "words" && Config.words < 250 && Config.words > 0)
-    ) {
-      if (delay < interval / 2) {
-        //slow timer
-        SlowTimer.set();
-        setLowFpsMode();
-      }
-      if (delay < interval / 10) {
-        slowTimerCount++;
-        if (slowTimerCount > 5) {
+    if (slowTimerFailEnabled) {
+      if (
+        (Config.mode === "time" && Config.time < 130 && Config.time > 0) ||
+        (Config.mode === "words" && Config.words < 250 && Config.words > 0)
+      ) {
+        if (delay < interval / 2) {
           //slow timer
+          SlowTimer.set();
+          setLowFpsMode();
+        }
+        if (delay < interval / 10) {
+          slowTimerCount++;
+          if (slowTimerCount > 5) {
+            //slow timer
 
-          Notifications.add(
-            'This could be caused by "efficiency mode" on Microsoft Edge.',
-          );
+            Notifications.add(
+              'This could be caused by "efficiency mode" on Microsoft Edge.',
+            );
 
-          Notifications.add(
-            "Stopping the test due to bad performance. This would cause test calculations to be incorrect. If this happens a lot, please report this.",
-            -1,
-          );
+            Notifications.add(
+              "Stopping the test due to bad performance. This would cause test calculations to be incorrect. If this happens a lot, please report this.",
+              -1,
+            );
 
-          TimerEvent.dispatch("fail", "slow timer");
+            TimerEvent.dispatch("fail", "slow timer");
+          }
         }
       }
     }