He's the most talented Qb in the draft. Better arm strength than Prescott, Wentz,Cook, only Paxton Lynch has a better arm than him. He's more accurate than all of them.
The problem that Goff is having is that he is forced to speed up everything in his mind. This is what is likely that's going through his mind "I have to process all the information given: are the wide receivers open--how much separation--how fast can the defender close on him, are they running the right route, is this a timing route, how long can the offensive line hold up, do I need to find a throwing lane.. etc. Once the game slows down for him, everything will click, and we will be a super bowl contender every year.