The Belgian struck twice in victory over Wigan and Van Persie said: "The first one showed he is very, very strong from corners and free-kicks and that is very important for us.
"Even if we play badly we can always score from set-pieces.
"I would have been proud of his second goal.
"He is raised in Holland. I am not saying every Dutch player is good technically but when you are raised in Holland - especially at Ajax, Feyenoord or PSV - you are brought up getting the ball, moving it first touch, move again, pass, move.
"He was at Ajax since 15 so it is in his system for a long, long time."