Probably not no. At the age Isak is Shearer was in his second season in a row (of 3) of getting 30+ premiership goals.
He is a better all-round player than Shearer apart from heading, but he's going to have to go some to be a better goalscorer. Shearer last 3 seasons at Blackburn and first season here his goalscoring was incredible.
BTW i'm not saying he is better than Shearer just to be clear, cos goalscoring is the main criteria for a striker, but i think he could be.
No, maybe you are right but i can't remember Shearer being THAT quick earlier in his career, he wasn't slow by any means until his second major injury but faster than Isak? I doubt it.