Pace can be very useful imo especially in attacking players.
But you have to have more.
Messi was no slouch in his prime.
Both Ronaldo's had pace in their prime
Mbappe is lightening fast.
But they had more about them than pace (extreme examples I know but they make the point).
Pace by itself as an attacking player isn't much use.
Pace with other skills is fantastic
Unfortunately James has pace and stamina which is great for a marathon runner but unfortunately not much use elsewhere.