Hey, i have mouse pointer speed slightly slower than normal i'm talking 1 notch to the left from default, mouse dose have a dpi button i tried changing it but the difference wasn't significant. The game felt <35% the speed i would normally want in a first person game. As for changing the mouse pointer speed it'd be kind of annoying to keep having to change it everytime i want to play the game so i'll just have wait until the settings button works.
Also i don't have any software that does anything to my mouse so that's not the issue