Running the PC version of Batman: Arkham City - which sees its UK release today - in DirectX 11 is causing performance issues and a patch is in the works, developer Rocksteady has confirmed.

"We're working on a title update to address this matter and expect to make it available in the near future," said US community manager Andy Cataldo in a post on the Rocksteady forums.

In the meantime, Rocksteady suggests switching to DirectX 9 and has provided detailed instructions of how to do so with the Games for Windows LIVE and Steam versions of the game:

Games for Windows LIVE:

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:

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