Nice, maybe make an other version with the cap, also for a cap i would say around 21cps, as my friend for example can reach 16cps with jitter clicking, and there are some faster methods, there are methods that reach 100cps+ but they are unhealthy for you mouse (something with flipping it over and tape) so those should maybe be limited, what method did you try tho?
as for the autoclicker, i would recommend opautoclickerx.0 (currently on 4.0, but 3.0 is also very good)
gl with your game tho, its an very enjoyable experience, and only really needs some small fine tuning on the title screen, as its a bit hectic to chose, (like showing what each difficulty changes could be very informative).