I have a 2080 and everything up2date on the side note of my video card driver. the line from 445 and above has had some serious issues and I have made a lot of post encouraging people to read the driver release notes for their Nvidia cards, I personally recommend you to go get DDU and install the NON DCH driver 442.50 or 442.59, yes it will say it is out of date but it is a stable high performing driver with little to NO issues. Mind you I am not like trying to be mean I just feel bad that Nvidia is pushing such crap drivers. I hope this helps you out a bit. I will link my other post for you to save you some read time and searching.
https://us.forums.blizzard.com/en/wow/t/flickering-waterfalls/641781/8
The ddu link in that post is out dated now however the newest one is here.
https://www.wagnardsoft.com/forums/viewtopic.php?f=5&t=3403
Good luck!
P.s. People on 3k RTX cards My best advice for you is to use 457.51.
https://babeltechreviews.com/geforce-457-51-driver-performance/