Provided you are established on the Localiser and are still above the G/S, set a lower altitude (still above the ground) say 1000ft AAL (the stabilised approach minimum altitude would be good), set V/S mode to the maximum allowed by your SOPs say 1500ft/min, get as much drag out as possible for the speed you're doing ie slats, flaps, gear and speedbrake if you are allowed and then sit back and see what happens, as you would if high on a LLZ approach. Of course, make doubly sure you have the G/S capture armed!
All bets are off at your company's Stabilised Approach point, naturally.