We certainly are. This keeps getting better and better. Can't wait for a release (:! Have you done testing in the new beta? Frame rates are smoother for me, I'm using a 570 GTX superclocked.
What settings exactly may I ask? I easily use over 500mb with textures at very high textures with airport detail at either very high or extreme, and shadow detail at global medium (everything else on highest and 1080p).