Dont Get If You Use This For Drawing!!!

Okay, so I make this PERFECT drawing... And then I slide my finger and suddenly my drawing has moved up the screen. Next thing you know Im spending the next hour trying to position it the right way again. But THEN it gets all laggy, I cant see what Im doing because there is so much lag! Anyway, just dont use it for drawing. Maybe... Idk classwork?

The_Donut about Sketch Pad 3