Function checkIfTimerIsSlow

frontend/src/ts/test/test-timer.ts:328–359

(drift: number)

}

function checkIfTimerIsSlow(drift: number): void {
  if (!slowTimerFailEnabled) return;
  if (
    (Config.mode === "time" && Config.time < 130 && Config.time > 0) ||
    (Config.mode === "words" && Config.words < 250 && Config.words > 0)
  ) {
    if (drift > 125) {
      //slow timer
      SlowTimer.set();
      setLowFpsMode();
    }
    if (drift > 250) {
      slowTimerCount++;
    }

    if (drift > 500 || slowTimerCount > 5) {
      //slow timer

      showNoticeNotification(
        'This could be caused by "efficiency mode" on Microsoft Edge.',
      );

      slowTimerNotifIds.push(
        showErrorNotification(
          "Stopping the test due to bad performance. This would cause test calculations to be incorrect. If this happens a lot, please report this.",
        ),
      );

      timerEvent.dispatch({ key: "fail", value: "slow timer" });
    }
  }
}

export async function start(now: number): Promise<void> {
  SlowTimer.clear();