Autoattacks don't seem to be doing more than 1B damage! Once you hit Holy Cheeks 54 (when health goes from numbers to A LOT), auto attacks won't one hit no matter how much damage you should be doing. Manual attacks one hit kill just find.
So, I'm currently on Holy Cheeks 77 and have noticed something odd. Active clicks are taking out cheeks in one click, but idle clicks are taking 20+ clicks to kill it.
Current stats:
Tap Damage 870.1B (weapon multi x16)
Attack - 584
Defense - 69
Speed - 89
Luck - 999
 "call click()"){kind=icon}
 "Idle Awards 2"){kind=icon}
 "Island Survival"){kind=icon}
It is now fixed!