100%CPU usage - choppy but high framerate and audio bugged out.

I have read other articles... this isnt a duplicate and no fixes have been found in the other articles.

MY SPECS

1080ti . i76700k . 32gbs ram 

ISSUE

CPU jumps to 100% in task manager.  my fans go wild like its being really difficult to run which it shouldnt. audio is out of sync. when walking on grass it makes half noises. i turned down all of the settings to lowest possible which made the cpu goto 12% but the audio desync/chopping didnt stop thoguh i was getting really good framerate on avg. 

IVE TRIED

looking into vsync issues, changed install path, lowering settings, reinstalling.