you keep ignoring that he got 6 goals in 8 CL games, as well as the 54 goals in 52 games for in the Portuguese league.
He clearly has an Ian Wright-type killer instinct for goal, given his suppliers would be Odegaard, Rice, Martinelli, White, Saka, etc he's going to get plenty of opportunity I'd suggest - even if he got half that tally we would call it a good buy right?