HOLY CRAP THIS THING LAGS. In fact, I think the only time I managed to see smooth graphics was only for 100-200ms, while I was in the middle of a jump.
The concept is quite novel, and I think it'd be great, but you have some really slow or inefficient code for the game that's causing user input and graphical output to lag and affect each other, even on the lowest quality. For example, after a lag of 200-300ms, even though I only tapped the left arrow, I might find myself 2/3 of the way to an entirely different screen.