Warner Bros. has confirmed that the PC version of Batman: Arkham City, released earlier this week, is experiencing some problems with DirectX11. They provided information on how to run the game smoothly in the mean time.

"We have received reports of performance issues from players of Batman: Arkham City on PC. After researching the matter, we found that running the game with DX 11 is causing the performance issues," reads a post on the official forums. "We’re working on a title update to address this matter and expect to make it available in the near future. In the meantime, a workaround for this issue is to run the game with DX 9 instead of DX 11."

You'll need to turn off both DirectX11 features and tessellation off for the game to work normally. Here are some instructions on how to do it on Steam and Games for Windows LIVE: Games for Windows LIVE:
Start > All Programs > Games > Right click on Batman: Arkham City and select Launcher > Settings
1. Open the Start Menu
2. Select All Programs and then the Games folder
3. Right click on Batman: Arkham City and select Launcher
4. Choose Settings then click on the arrow next to DX options to change


Steam: Launch Steam Client > Library > Right click on Batman: Arkham City > Configure PC Options
1. Open Steam
2. Select Library
3. Right click on Batman: Arkham City and select Configure PC Options
4. Choose Settings then click on the arrow next to DX options to change

No time frame was provided for the patch. Hopefully they get it out quick as can be, though. Arkham City is a solid game and PC gamers deserve the chance to try it with all the bells and whistles that their platform can muster.