As far as I remember, when Makarov came to the NHL, he had even better %. And not for a few games, but for a few seasons. So it's pretty possible and up to playing style
Maybe in the 90's, but not this era. Ivan also had 10 on 93 shots last year (~10% shooting percentage). Like I previously said, unless he developed Laine's shot over the summer, there's no reason to think he will continue this goal scoring pace