I have a Samsung Galaxy Grand Prime, right? I also have Geometry Dash on it. In Geometry Dash, there is a LOT of tapping you have to do, and the problem I'm experiencing is whenever I have to rapidly tap, the touch screen will just stop working. Sometimes I'll be holding the screen, and even though my finger is on the screen, it'll stop working. Sometimes it doesn't even register my taps. It's very frustrating and I'm wanting to know if it's poor optimization with the game or my phone. Help me!