My Ps5 keeps overheating

I’ve cleaned it out put a fan on it and only over heats on ps5 games and won’t instantly overheat but does after sometime I can play my PS4 games on my external all day no issues but if I play any ps5 my system starts get hot even on games that don’t seem push system to the limit I even tried building data base and cleared catche and fans running starts get loud when it’s hot