FPS drops dramatically when hovering over UI, after installing Mirrors Edge

Hey there.

I used Unreal Engine last night (and have done for years without this issue). After I installed Mirrors Edge, hovering over UI elements in Unreal Engine causes the FPS to drop to 5-10, depending on frequency, and makes the editor unusable.

As Mirrors Edge is developed in UE3, there has to be a connection there. So far nothing else seem affected, and I only have issues in Unreal.

The game is now uninstalled, I have done a (futile) restore to a few days go, and of course restarted my PC, as we ll as tried multiple versions of Unreal.

Something about Mirrors Edge installed a dependency which is causing this issue, but I dont know what it is. Does anyone have any idea what it might have installed that could interfere with UE?

Thanks