Today I decided to give the DX 11 augment a try and added it to my config file. Sure enough, my fps increase a bit but when I load the game initially it just sits at a black screen and I can hear the music playing. About 7-10 seconds after hearing the music the video finally pops up.
When doing alt+tab it goes to a black screen for about 5 seconds then I see the last image of the game as my desktop. If I try to go back into the game it's another black screen for a bit. Tabbing between accounts is insane. 5-10 seconds to tab out of one account and 5-10 seconds to tab to the other account. Under DX10/9, whichever it was, it took about 1 second to tab between two accounts.
Windows 7 Premium (tried before SP1 and after)
EVGA 580x2 SLI video (nvidia drivers 266.58 currently)
EVGA 450 Audio/Physics
6GB G.Skill PI 1600 DDR3 Ram
i7 950 oc @ 4.2GHz (tried stock as well)
Corsair 120GB SSD
I have tried with SLI enabled, disabled, various video settings ingame, different drivers.
Anyone else have a problem with DX 11 being slow to load and tab?