It is noted in the latest nvidia driver, I have posted a few times here on the forums but to sum it up look here
https://us.download.nvidia.com/Windows/456.71/456.71-win10-win8-win7-release-notes.pdf Click windows 10 issues. or this imgur link if you don’t want to do that.
and then do a manual driver search or click here
and pick 442.50 and install it and check release notes and issues in drivers before installing them, wow will tell you at your character screen that it is out of date however it will play just fine. Updating to the latest driver is not always best! I hope this helps.
P.S. this stutter has been occurring since 452.06 and forward and screen flicker from 445.xx and on. Stick with 442.50 for now. Also I would use DDU to properly uninstall it.
I have written these steps out already located here :