I've found that when my game becomes a little bit bogged down the first thing to go is Mouse Procs (even though everything else works without any delay), is there a way to stop this..?

The cause of the lag is some AI, for which the background setting is active. Also, the lag is actually pretty negligible (you can still move and do other commands, the only thing that becomes unresponsive is mouse procs, as if their priority is just not existent).

I've even tested it by switching the functionality of mouse procs on and off with a verb (normally MouseDown() would fire; I have a toggle that instead just makes it print out "You've fired" and it even visibly lags while printing it out, that is it'll print out "You've" and then with about a 2 second delay it'll finally print "fired" whereas all other parts of the game go on without delay.

I understand that this is a performance issue (probably caused by crappy inefficient AI; that's only temporary though) however, the world.cpu doesn't even reach that high.. it gets to like 15, and even the actual dreamseeker.exe entry in the Task Manager shows that it's only using like 15% CPU, the game itself doesn't visibly lag, just mouse procs. Is there any way I can jack up their priority?