Quick click has 2 modes of operation.
** Time based **
Repeated clicks (as slowly as once every 60 seconds to as rapidly as 10 times a second!) that keep sending mouse clicks continuously based on a time interval.
** Movement based **
Click mouse immediately after you stop moving your mouse. This way you don't need to press the mouse/trackpad button each time after you move your mouse.
Both of these are meant to ease and automate mouse clicks when you work on repetitive tasks (or games). You can also assign a keyboard shortcut to activate/deactivate Quick Click on demand.