I wonder if the updated PhysX drivers in this release will help with the performance issues in BL2 since the release of the Captain Scarlett DLC?
http://www.nvidia.com/object/win8-win7-winvista-64bit-310.33-beta-driver.html
http://www.nvidia.com/object/win8-win7-winvista-64bit-310.33-beta-driver.html