Popping g the shifter to the left should put you in sport mode.
Or simply blip the downshift paddle when you need to pass. It'll automatically go back to slush mode if un used for a while.
Or simply jiggle the shifter left (into sport mode) then immediately back right (out of sport mode)
That's how my 5AT is set up anyway
But what really makes a difference is a shift kit in the valve body
