First of all, why don't you just try and play with it and find out yourself?
I have over 3000 hours of cs go alone, I have played with everything (and I mean over 100 of hours with different senses) with 60cm / 360 - 40cm / 360 and I'm now playing with 21cm / 360 just because I play a lot more different games than just cs go so I feel like having a higher sens helps me out like in pubg, battlefield v and so on.
I can still play cs go fine with 1.2 ingame sens and 1600 dpi, I actually don't feel I aim worse and I did with 1.6 ingame sens and 400 dpi (which is what I used for 1000 of hours). I'll probably trigger a lot of people saying this, but CS GO players have such a "fake" aim, the maps are too linearly and easy to learn so you can get away with low sensitivity by simply preaim spots and you hardly ever need to aim in the y-axis (you usually always have the crosshair on head height). Do this on other games like quake, pubg, battlefield or other games and I would suck so much with a slow sens like that.
I can easily turn 180 deg instant with a slow sens, but I would need to "reset" my mouse a lot more when doing so, I aim best when my mouse is at a certan position on the mousepad, higher sens allows me to keep the mouse at that position of the mouse pad more basically.