well, have you looked into react native made games or apps or perhaps their official documents to get more reassurance on this matter? in general they should be pretty similar (in dealing with performance and load tolerance and etc) unless you’re coding for some special sortta games (which i cant think of any )!! happy searching
You are waaaaaaaay off that being any kind of an issue. ie have you programmed a few games and noticed this issue consistently cropping up?
What kind of games? What do you mean by high quality? Specifically just for iOS?