People can't expect Mahomes in every QB coming in to the big league and explode almost immediately. He'd be fine to just enter the league, get along with the team and improve his craft.
I'd say the most important question is if he will remember his father's lessons and discipline, if so, he will be fine.
Unlike the other guy, not the brother, the other guy who is coming from under coach Prime's wings. People are already concerned with his status cause he is busy hooking up with all those seemingly gold digger bitches.