I see Dugi’s post above saying you are working on FPS.
Today I spent a couple hours trying to figure out why since Tuesday’s patch, my framerate was periodically dropping to 1 … yeah, 1. Fun. But anyway, after trying all the Blizzard recommended testing, and updating my video driver, I decided to unload all addons. Presto, FPS became normal.
So I loaded only Dugi guides, and presto, FPS dropped to 1 again. Tried this maybe 3 times and FPS dropped every time Dugi was reloaded.
So then I updated to 8.745, and the problem now appears to be fixed. Hopefully this was a result of your working on it as mentioned above.
If problem returns, I’ll report back.