I’ve had recurrent training for baulked landings for some time. The thing that strikes me is that once you’ve made the (admittedly difficult) decision to throw it away close to or after touchdown, there is then no real rush.
As you are near to or at flying speed, there isn’t much acceleration required before you can get back into the air. The aircraft generally has performance in hand as you’re below MLW and as long as you rotate before you get into the reds it should work out. OK, if you’re touching down 2,500m into a 3,000m runway, then you need to be a bit snappier but if you haven’t chucked it away long before that point then you’ve got it coming, I’m afraid.