LCC doesn't let you disable it either, does it? In any case you don't want to disable it, you just want to change how it functions.
For this you can use the Steermouse driver or wait until USB Overdrive is updated. USB Overdrive's website is down at the moment so maybe that means the update will be here soon. Before it said "in a few days". Having tried both of them, I had better luck getting comfortable mouse movement with USB Overdrive.