He is not quick enough to be a world class winger and his delivery from wide areas is generally fairly poor. It's actually commendable that he has managed to have so many goals and assists when he isn't playing in his best position.
He is somewhat similar to Bale but slower, and that's why he has to play centrally ( like Bale did when he lost his pace ).
He lacks the guile of attacking midfield players like De Bruyne and Wirtz, but it is a myth that you need intricate passing to play well in that position. Raphinha can be effective centrally with his movement, getting in the box, long range shooting and goalscoring. Much like an older Bale was, or a Lampard or Wesley Sneijder.