Why 10 seconds
The Kohi server popularised a 10-second window because it rewards sustained clicking, not just a one-second burst. It's long enough to expose whether you can hold a high rate without your hand giving out — exactly what matters in a Minecraft fight.
Clicking faster
Most players improve by relaxing their grip and clicking from the fingertip rather than the whole finger. Advanced techniques — jitter and butterfly clicking — trade switch wear for higher CPS. Test those on the dedicated jitter and butterfly pages.