I doubt that mate. It's a self selection bias, most people just play the game without problems, it's the ones with problems who post here. My game works just fine with dx11...
So you're not seeing any performance degradation during longer NPC conversations the way I do? Walking around exploring and fighting works flawlessly for me with dx11, but conversations that last a few minutes tends to grind to a crawl and the entire game turns into syrup.
