My wish would be that it was faster at doing the conversion it does when it's getting out of projection mode.
That's a reason I avoid using a tiled map. You have to use projection mode to paint and you have to go out of projection mode every time you want to turn the model then, back in.
It's not really a 32-bit problem, but I was thinking if he was revisiting the code to make it all 64-bit maybe there are some new speedups that can be done as Steffen has done with A:M.