This can hardly be called a mod since I'm only changing one config setting, but eh. I guess people weren't kidding when they claimed that SC6 is the fastest game in the franchise!
This is pretty easy to accomplish. Open %LocalAppData%\SoulcaliburVI\Saved\Config\WindowsNoEditor\Engine.ini and add this to the bottom:
[/Script/Engine.Engine]
bUseFixedFrameRate=False
And then the game will be as fast as your computer allows it to be. It's like an old DOS game! It's also good for benchmarking as it shows you the highest framerate you can get in the game.
Alternatively, you can do this and specify the exact framerate you want (default is 60)
[/Script/Engine.Engine]
FixedFrameRate=120.000000