I mean, yeah he is slower than Hazard and he isn't as good as Hazard at dribbling, but who in the PL is better at Dribbling than prime Eden Hazard? There was a time where Eden Hazard was the best dribbler in Europe and Messi was second best according to stats. But that does not mean that Grealish is a bad player. I think Grealish has great potential and I think he is much, much better than for instance Mount. Is he is better than Foden long term, we will see though