I really can't see how this guy would score more than 10-15 goals a season in the PL if he doesn't take penalties. His movement and positional awareness just isn't elite.
So far in his career he's been scoring non penalty goals in Serie A every 200 minutes while overperforming his npxG, which is pretty far from elite. How that would translate to the EPL I don't know, but it would surprise me if it improved massively......
Another annoying part of his game is that possession is lost som often with him losing the ball before he gets a pass away:
Misshandles when trying to gain control of the ball from a pass per 90 / getting tackled while running with the ball (not dribbling) per 90
Vlahovic - 3,67 / 2,93 - total 6,60 per 90
Ronaldo - 1,62 / 1,15 - total 2,77 per 90
When none of these are very direct or vertical in their playing style (Vlahovic 0,10xA90/ Ronaldo 0,11xA90) this will get very annoying very fast with Vlahovic.
His pressingnumbers aren't great either, so I would be very sceptical to blowing 70+ M on this guy before he shows improvements in those fields.