Most of this is just gonna be basic tips for movement and subject to change every update.

Black holes: Apparently this is not obvious but if you hold a black hole you will be pulled faster and for longer. If you go around a corner you can hold a hole to almost grapple and change direction this works both left/right and up/down.

Running on a wall lets you get above the black hole speed cap for a little bit.

Wall climb/1 sided wall jump/wall pumps?: By moving at a angle while wall running you can jump and stay on the wall while moving up but not resetting the speed loss over time.

B-hop: If you have played any movement game you know what this is but if not by pressing jump as you touch the ground/ holding the jump key you will keep almost all of your speed.