I just looked over the mission editor script real quickly, the variable that you want to change is $Camera::movementSpeed
The range the variable can be is 5 through 200.
So, if you want it to be the fastest, set it to 200.
Edit, testing it in game it appears to glitch up pulling your admin orb back, don't know about if you were the host though.
Double Edit: It appears that the variable mainly matters with the host, meaning if the host has it set to 40 (default), you move default no matter what, if it was set to 200, yours move the fastest also.