The camera suddenly moves at like one frame per second when moving the mouse. There are no delays when hitting alt to move the cursor, in the menu, at the character selection screen, etc, it's only when in the game. The actual game performance is fine. I've tried three different mice--a Roccat, a Corsair and a Razer. I googled and tried all of the suggestions like disable smooth mouse, maxing smooth mouse, changing mouse speed, etc. Nothing fixes it. I even completely uninstalled the game and reinstalled. This just randomly started Tuesday morning and the game is now completely unplayable.