For beginners, 2 to 3 clicks per second are good speeds for practicing. For an average player, 4 to 5 clicks are good enough, but if you want to become the expert or master of the fastest clicker, you have to click 5 to 10 clicks per second.
Click per the second test defined some names for the players according to their level. If you are a beginner, the CPS counter test is called your turtle, and a faster clicker will be called your rabbit.