Hard to do anything else than guess what your problem may be. Please make sure that mouse input works in the game and check whether you maybe accidentally disabled head tracking in vorpX or set the head tracking sensitivity to zero.
Awesome Ralf! It was the head tracking sens. I guess that may be tied to in-game sensitivity? My in-game sens for csgo is ridiculously low and after you brought up the head tracking sens I noticed that there actually was headtracking but it was very minuscule. I jumped it up to the highest and now it works great. Hopefully anyone else who tries csgo with a low sens will see this.