USFIV difficulty mods?

Are there any mods for USFIV (PC version) that would make the Arcade Mode more difficult/improve the A. I? Would something like that even be possible?

I’m asking because I’m often in situations where online play isn’t available (no internet connection) and other IRL players aren’t available, so all too often I have to rely on Arcade Mode for "competition."
Thanks in advance!

There were a few settings that could be modified to change the behaviour of the AI but I don’t know if it still applies to USFIV. There was a thread on the Tech Talk forum with some details. You will have to search for it though.