People adjust but also the difference between switches in terms of actuation speed and typing is minimal, provided you are no comparing something with hysteresis (B.S., blues, greens).
There are times where certain switches will help, like nudging a character forward where a tactile feel can help, but that doesn't require speed, it needs precision, but in the heat of battle most people can't maintain that level of dexterity and just start mashing buttons. And yes, a short throw will speed things up in such a situation, but the amount is ridiculously small and realistically not going to make any sort of difference in how you rank.
Bottom line, run what you like.
I personally like short throw highly tactile, though I don't like the super short throw Speed switches as they come off as linear and feel like they collapse, you need some overhead before the bump. I also like BS and blues but hate the noise and hysteresis, thus loving Jailhouse Blues which are the best of everything as far I'm concerned, but can be a serious investment of time and possibly money.
As for me, I've used a few switches:
Buckling Spring
Cherry Vintage Blues, Vintage Jailhouse blues (wired, lubed and non) Reds, Browns, Blacks, Clear, Ergo Clear (lubed), Cherrystotles (Cherry housing, Aristiotle stem)
Gateron blues, Jailhouse Blues (Jspacers or O-ring), Gatistotles (Gateron Housing Aristotle stem)
Outemu Blues, hand wired Jailhouse Blues
Kailh Speed Bronze (or thick gold), Speed Gold
Aristotle
Various other mix and match between all of these
Alps (blues?)
Scissor switches (Apple, Logitech, IBM, Lenovo)