After the anniversary update, I’ve been experiencing som FPS issues. I usually stay around 110-130 fps, but some times I randomly go down to 80ish, and everything becomes really choppy, feels more like 40-50fps.
Yeah. I have the same issue.
I normally get 80-90 fps but after 5-10 minutes of playing it goes down to 30-40 fps.
Blizzard plz fix.
I did a repair, and the stuttering went away.
will try thank you mate
Hello everyone,
Some basic steps to improve performance, to see if they help. 
Make sure both your operative system and drivers are up to date:
battle.net/support/article/31024
Make sure you deactivate Xbox DVR:
battle.net/support/article/92046
Delete the Battle.net Cache folder:
battle.net/support/article/34721
Repair the game:
battle.net/support/article/7655
Close background applications to make sure there’s no other program interfering with the game:
battle.net/support/article/23848
If the issue persists, please create your DxDiag and MSInfo files:
battle.net/support/article/12988
You can paste the content of each file on a web like Pastebin and provide us with the links.
Got feedback about the support I’m providing? Leave your comments here!