I just updated to the latest nvidia drivers and suddenly, whenever WoW is opened and I alt-tab or have another window on top of the game, said window is super sluggish, as if Windows was running at 20fps or so. I tried changing to DX11 and the problem was gone and everything working smoothly as expected with the game open. Reverting to DX12 brings the problem back. I never had this issue until this driver update. Haven’t tried with the retail client
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