That’s exactly what is happening to me. I may be doing WQ, and it Freezes every time you jump in to a mini cut scene, such as the invasions, it freezes for 20 seconds then am, allowed to play again. Or last night when doing Operation Mechagon, every time we would face a new boss, and a in game character would speak it would freeze. It sucked because i was tanking. At this point am not even doing any content from 8.3 due to the many issues. Am reinstalling WOW and addons again.
Link to PC support: https://us.forums.blizzard.com/en/wow/c/support/technical-support/15
Link to Mac support: https://us.forums.blizzard.com/en/wow/c/support/mac-technical-support/16
Edit, and here we are, PC support.
Post in Technical Support, as stated by the Blue in the last thread
Thread moved from Customer Support.
Have you tried this?
Since we are here, it might be a good idea to check out these:
Jodariel, Thank You, that solution helped a lot!!!