:shrug:
That's one of the things that are really hard to compare, I guess.
It shouldn't need to be said, but no amount of Nobel prizes in the world is going to make one whit of difference for introductory calculus instruction. When the prime research centers are decoupled from the universities and these silly little metrics, it's no wonder that European universities are "bad."
It's like saying that American universities are the best on the "amount spent on American football facilities per student" ranking. It's true, but the other universities might not be competing on that particular metric and focusing on other ones.
That doesn't seem like what they're optimizing for. Public institutions tend to optimize for maximum budget, maximum head count, and maximum power.