Are you trying to or add specific mods to an existing installation?
If using the GOG version on a non-Windows system, you may need a wrapper like Porting Kit .
If this is a mod, it is often best to extract it to a dedicated folder within your game directory or your Documents/EA Games/Mirror's Edge folder. 2. Installation Procedures
These tools often fix issues like mouse smoothing or frame rate caps. 3. Essential Post-Install Fixes
Look for an unrar.exe or setup.exe file in the extracted folder.