I recently reinstalled SC2 and playing seems impossible. I get 2-3 fps in the different menu tabs, and around 7 ingame with minimum graphical settings which obviously makes the game unplayable. This is on an Asus ROG laptop with GTX 980M. All drivers and updates are current and I have no such issues with any other games (including other Blizzard games like HotS). Fullscreen or Windowed Fullscreen makes no difference, nor does Vsync. No other programs running on background.
I have an older, crappier laptop with SC2 installed, and it runs it fine with 30fps on medium settings. Does anyone have good ideas on how to fix the performance on the gaming laptop short of straight up re-installing the game?