I do not see what your talking about. If you mean the "Performance" section in the in game menu, where you can limit RPS/FPS. That doesn't increase the FPS just limits it, as the name states. I don't believe that is what your were referencing, but it's the only thing that involves FPS in the menu. I also don't see anything in the settings that says "Config" nor in the launcher it-self. The only other thing I could think of would be a config text or ini file, in the folder that I have the launcher in, but there isn't one. So unless you are suppose to manually make one, I don't see a way to change the default FPS of the boxes.