We don’t really know what Niasse is capable of goal wise. He’s playing in the poorest Everton side I can remember for a long time yet his goals to minute ratio is very high. He’s been swapped in and out by different managers and has had different players around him in different formations. Lukaku played ahead of pretty much the same settler side for 4 seasons with Barkley and Deulofeu providing the ammo.
I’m not claiming Niasse will be on a par with Lukaku, but he seems to have a goal during knack yet people seem more concerned with his first touch. DCL has a lovely first touch but can’t hit a barn door.