How would I change or make my Character faster without touching Walkspeed?

In my game there's a client script that forces the walk speed to be about the same so exploiters can't change it, I want it so I can still make my character faster without it as I want to test out different ways to do fast character motion and if I could get a better way to do character movements, this game is more of a test I am more then likely use this information to stop other possibilities of exploiters being able to become faster.

If you could help it would mean a lot!