This is not a known issue at this time. If you have not done so already, try uninstalling and reinstalling the game as well as checking for any available driver updates. If you are still framerate issues, please try shutting down any other background programs to see if it helps. Please submit your dxdiag and msinfo in a Support ticket if you continue to have this issue so we can look into this a bit further. You may submit a ticket to your region's Support using the links in my signature.