"Faster!" (4)

(Other definitions for move that I've seen before include "Manoeuvre; go" , "Change address" , "Go, transport" , "Stir - change places" , "Change (house)" .)
(Other definitions for step on it that I've seen before include "be quicker" , "Go for speed" , "Hurry! - set point (anag)" , "Informally, hurry or drive faster" , "improve rate of advance" .)