It’s definitely a lot slower. I remember working there and at lunchtime they’d be working the grills 24 down - basically double the usual capacity and that stuff was wrapped and put into the racks constantly. They’d try and make burgers to meet demand with a holding time by which the burger should be sold by or thrown into a red bin. Usually it worked fine and waste was minimal but I assume some beancounter thinks that system and red bin waste costs McDonalds more money than it does to waste 5-10 minutes of somebody’s lunch break. If people get pissed off by the wait though they might consider going somewhere else - after all, if they’re going to wait, why not in a place where something more substantial than a burger is being prepared.