Fixed frames now bad graphics issues

[RagingGinger 0]

So I got on a couple days ago and for some reason my settings had been changed and my frames were horrible. I found out that my settings in NVIDIA somehow changed from 144hz to 60hz. So of course i switched it back. That seemed to helped my frames a lot but there still not as good as what they were but it's playable. Now I am have graphics issues and rendering problems. About 100m out there is a fog/haze now that was never there before. I first assumed it was morning time and it would go away but an hour later still there. Also graphics are very choppy and rendering is very off. I tried to delete my documents dayz file but it was sync pending and won't allow me to delete. So I researched that and found out I need a windows update which I did and then restarted my comp. The sync went away fora minute and came back. I'm not even sure how to go ahead with the sync or stop it. I can't find an option for that anywhere. I still can't delete the file. I'm not sure where to go from here. I have been playing for maybe a month now and I have not had any issues until 2 or 3 days ago. Can anyone please help? Thank you.