Batman: Arkham City – DX11 Path is bugged; Rocksteady is working on a patch


Batman: Arkham City has just been released for the PC and although Rocksteady had a full month to tweak their game, it appears that the current build features a bugged DX11 mode. In other words, the DX11 path is causing performance issues and that’s something that Warner Bros has officially acknowledged. In order to avoid these issues, players are required to run the game in DX9 mode for the time being.
According to the company’s US Manager, Andy Cataldo, Warner Bros received a lot of reports about Batman: Arkham City’s PC low performance. After researching, the company has found that running the game with DX 11 is causing the performance issues. Warner Bros and Rocksteady are working on a title update to address this matter and expect to make it available in the near  future.
So for the time being, PC gamers are required to run the game in DX9 mode. Here are some instructions for changing DX11 to DX9:
Instructions for changing DX 11 to DX 9

The Launcher can be accessed on Games for Windows LIVE and Steam to change DX 11 to DX 9 in the Settings menu.
Change both DirectX 11 Features and DirectX 11 Tessellation to OFF.
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
In other news, we’ll have a Performance Analysis in DX9 the following days, so stay tuned everyone!