So i've been quite into speedrunning 1-4 and i've seen people punching the coin as if there was no punch cooldown (idk how is that called). I tried so many times but i never even came close tho that speed. Also whenever i try to ultraboost when going out of the spawn i either get too much vertical speed and just bump ito the ceiling and loose all my speed or i simply go too slow so basic slam storage is faster (i've tried doing this sooo many times and never succeeded). What am i doing wrong?