Hello again!
I just came back to my computer so I played it again. Yeah I'll have to stand by my previous statement, a bit more acceleration and deceleration would be better. Your jumping is a bit floaty! I'd recommend for a better jump to make your gravity stronger as the player falls, leading to tighter timing. having stronger gravity may also help.
anyways that's all I have to say, if you have any other questions I'll be happy to answer them :D