This isn't necessarily true regarding curing time.
When you get a car/part painted, it is baked in an oven.
Then it is flat sanded to remove imperfections, and then polished with a machine polisher (usually to a poor standard by bodyshops).
Was the panel baked?
So, really, if it has swirls in it, you can machine polish, then glaze/pre wax, then polish.