They sped up eating fairly recently (in the past 6 months?) and it was a bit controversial. People were saying they could barely have a family eat a meal together anymore. But they were eating ridiculously slowly before. They still eat slowly if they’re sad or something, is that relevant to your current issue?
I don’t think they need to speed eating up more, and I’m not really bothered by the time it takes to cook things. It seems like they start off very slow but they get faster with higher cooking skill unless it’s a complicated dish.