Switching from Xbox One to PC real soon.

Hey guys,

I've been a console gamer my whole life and when PUBG came out for the Xbox I was psyched but quickly found out how abysmal it is. Recently I have taken a liking to PCs and have decided to build one in the near future after seeing how great PUBG looks on PC compared to the Xbox.

For a FPS player like myself, what will be the biggest difficulties when switching over? Is there any tips anyone has especially if they used to be in my situation?