Slowing down in SF

So I noticed something from all the competitive games that I’ve played that slowing down seems to always be one of the main answers to getting better at any game. In SF I hit master after I slowed down and it seems like each time I climb 100 Mr I slow down a bit more for each jump. Even in valorant after learning the basics and slowing down I was able to hit higher ranks. But I have no clue why this helps so much. Has anyone else noticed this ?