This may indicate his potential, given he's only 24. Players mature (as goalscorers) at different rates. Given that his movement is good, he may start to score more goals at some point.
His biggest problem is that the competition for places is cruel and he doesn't start enough games. He would probably look like a much, much better striker at a team like Inter or Dortmund. He may leave in the summer. Much depends on whether he will be involved in the biggest games and goals. He was starting in the big games earlier in the season up to United away and we were good and efficient with him in the team.