Which symptom should you compare first?
Watch total clicks, CPS, timing consistency, and whether fast tapping creates skipped counts. A stable rhythm is more meaningful than a single peak number.
Mouse & Trackpad
Click speed test and CPS tester for measuring total clicks, average CPS, best 1-second CPS and click rhythm over a fixed time.
CPS means clicks per second. The page counts primary clicks during a fixed countdown, then reports the whole-run average and the highest rolling 1-second burst. The average is better for consistency; the 1-second peak is better for short bursts.
Q: Why doesn't right click count?
A: The test focuses on primary-button speed and avoids right-click menu interference.
Q: Is Avg CPS the same as Best 1s CPS?
A: No. Avg CPS measures the whole run; Best 1s CPS measures the highest burst.
Q: Does an uneven score mean the mouse is faulty?
A: Not by itself. Rhythm, fatigue, desk height, browser load, and hand position can all change CPS. Use the button or double-click test if clicks are missing or repeating.
Run 2-3 rounds and compare average consistency, not only the peak value. If performance drops sharply after the first run, it is usually rhythm or fatigue rather than a hardware fault. A single low score is weak evidence because timing can be affected by tab focus, hand position, browser load, and whether the mouse is wired, wireless, or routed through a hub. For hardware comparison, use the same duration, same surface, same browser, and the same finger technique. If one mouse repeatedly shows lower average CPS but similar Best 1s CPS, the issue may be comfort or endurance. If both values are unstable across runs, check switch feel, USB connection, battery level, and background apps before replacing the device.