I wasn't able to get past level 2 as just pushing a button would lead to my character moving at a far too uncontrollable rate. I think this could be neat if either the walls would bounce you or the player would be slowed down a bit.
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At first I spent a lot of my time on creating the levels rather then smoothing out the player movement. Then when I got some other people to playtest the game, they said the same thing as you, but I didnt want to experiment with new numbers so I decided to leave it there. I'm gonna be making a post-jam version where the border will teleport you to the opposite side of the screen, plus some more polishing and focusing more on the player movement.