Well, it's something you will notice by accident but I thought I just share it.

If you hit the corner of a platform in the correct way you can get a great speed boost but doing it isn't so easy. But you should try to get the boost for a faster time.

Well, I discovered it once but wasn't sure how it worked. Anywoo, update soon! I hope today-tommorow or on Tuesday

you can get insane speed hitting a couple in a row

Edit: here's an example, though i think ive gotten a faster one before

yeah it's a bit dangerous and hard to do but if you have some luck it could give you a good time.