It doesn't matter how fast you are on a run, what matters is if you beat the defender/s. Actually it is more impressive if you do it without pace because pace needs space to exploit while relying on body feints, balance and anticipation does not. The best dribblers don't need pace even if it obviously helps. I also don't think that he just could've fouled him. It's an art to lure the defender in, controlling the ball just close enough for him to believe he can get to it when it is actually unachievable.
And I think you underrate Cristiano in his late United/early Madrid years. That guy was a real competition for Messi, beating players for fun and cutting through multiple opponents at once regularly. His close control and finishing with both feet was better than Mbappe's if you ask me. And in terms of close control it's not even that close. And yes, Mbappe is only 23 but I've seen him forgetting the ball, being to fast for it or stumbling more often than I've seen Cristiano until now.
Which doesn't mean Mbappe isn't exceptional in these regards. He is a very good dribbler and excellent finisher. Paired with his pace his control is incredibly hard to defend against. But his technique in itself isn't as good as those of the three players mentioned and to be honest, there are quite a few others who are better than him in this regard that are currently active or have retired not too long ago.
Not saying he's a pace merchant or anything like that, far from it. But pace and the awareness of space are his outstanding attributes, the rest isn't on the same level, albeit still very good.