This movie demonstrates the pause glitch.
In this game, you need to wait at least 60 frames to land and jump on a ramp again. Not 100% sure what determines the additional wait time.
To get the highscore as fast as possible, you can hold the pause after getting off to make sure you can jump on a ramp again after 60 frames.
This seems to be faster than slowing down because of the undeterminted random waiting time sometimes after the 60 frames.