So I started the game up and patched today. I didn't play until later. I noticed some VERY annoying mouse lag. I noticed it in the menus as well. The game will freeze the UI for a second and then it will resume. It seems to only affect the UI, as my character seems to move fluidly like normal during these "lag" moments.
Here's a video demonstrating what I am experiencing. I am constantly moving the mouse in the video, but you will notice the mouse hand stops moving every now and then. This is NOT done by me, but the game freezing the UI.
I'm not certain if the patch is what caused this. I actually patched up recently and then wanted to system restore. I was forced to patch again, obviously. I've also been using alt-tab to logout of the game more than normal, recently.
Is anyone else experiencing this or is it possible I need to reinstall?