Completely different players.
Mahrez - uses skills, feints and dribbling to cut inside, uses pace to close down on goal and get a shot or pass off.
Bernardo - close control and tends to bring other players in with his link up play.
Oyarzabal - can get to the byline and fire in a cross quicker with his left foot, more direct with his dribbling and has better composure in front of goal with a wider variety of finishes.
Just because they share a similar trait in their speed doesn’t mean that they’re similar players. That’s unbelievably stupid.