This player's supposed speed is just a myth! When was the last time you actually saw him outpace his opponent? Maybe in the French farmer's league, his speed stood out against slower players, but at this top level, he doesn't seem incredibly fast. Besides, speed is nothing without quick thinking and excellent ball control.I think he's got lots of potential, with the pace and skill to consistently get past his man.
Needs some work on his decision making and the intricacies of how this team fits together, but he's a young player in his first season at the club and I think on balance he's probably done as well as or better than could have been expected at this stage.