Well, it's quite possible to have those numbers and not score
Balotelli had 19 shots on target and only scored 1 goal in the league, in 2014-15
So it can be done
Sure anything can be done... especially where super Mario is concerned
But exceptionalism isn't an argument ... and Balotelli's numbers tend to just show how worthless 30 yard shots are.....
I know you don't fancy Solanke as a player which is fair enough.
The point about him is that he's done what few young strikers in this league do and what has historically been predictive of success
There are 2 possibilities 1) his underlying numbers so far are a freak of circumstance (sub effects inflating them, luck in chances coming to him etc) which will disappear over the medium term or 2) he's been unlucky with his finishing and he'll score goals
A super high xG and a super low goal return are almost certain not to both exist in the medium term
But you asked how long we have to wait to find out which and the answer is longer than the 550 minutes he's played so far