That must've been a terrible developer, considering that one of the biggest benefits of DX11 is an improvement in performance.
Well DX11 runs on only the most expensive of graphic cards right? But you also still need Win7 64 bit to get the best out of it and possibly more sytem Ram. So while a lot of people were expecting miracles they lost out with slowdown and THEN discovered either their graphics card wasn`t DX11 or they were missing Win7 64bit or they didn`t have enough Ram, etc, etc.
It wasn`t the wondrous thing to all men that some expected.
I`d rather they did more to fix the game for everyone, not just people with super computers and £4- £500 graphic cards.