It stops a lot

It often doesn't move even when I tap it. It surprises me every time, so I hope for improvements. This game involves watching 10 reward ads daily for hidden quests, always watching ads that increase diamonds, playing puzzles in between, watching forced ads that don't count towards progress, and then advancing areas. The 'Tai Quest' was expensive in the middle of the night, but I couldn't access it before sleeping, and when I woke up, the price had dropped significantly. You have to buy when it's high. Since the hidden quests are quite rewarding, I think it's a good game even if the 'Tai Quest' prices are low.