Lag spikes and high world MS

So far I have

-uninstalled all addons and addon managers
-used scan/repair tool
-followed the steps from blizzard for resetting user interface
-Clean install of WoW
-uninstalled and reinstalled drivers
-rebooted and then reset internet connection (as always I play wired connection)

Has not helped at all. Still getting the slowdown/Fast forward happening and its made the game unplayble. Yet any other game I play beside WoW runs completely fine as they always have.

At this point it seems to be an issue on Blizzards side. I assume that is why we are not getting any responses in the thread to help assist. I guess the only option I’ve got remaining is to just hang it up and cancel my sub. Either that or keep paying my sub for a game that is not working.