It runs as 60 fps for me so I'm not sure if anything has to be done to unlock it. To be honest its been a long time since I first installed the game and saw it running as vanilla so maybe there is something I'm not remembering about an fps issue. Perhaps the OP's ini tweak does something to help? I just know it runs at 60fps for me with no problems thankfully.If it helps anyone here is one of the values from the OP's ini tweaks that may help some:Engine.GameEnginebSmoothFrameRate=TRUEMinSmoothedFrameRate=50MaxSmoothedFrameRate=90.