unfamiliar with chess.com but correspondence chess(day/move) and rapid (game 30+0) should fall under two different rating classifications. Having different ratings between them is to be expected.
And while people tend to make __better moves__ in slower time controls, their rapid/blitz ratings are usually higher than standard ratings.
And while people tend to make __better moves__ in slower time controls, their rapid/blitz ratings are usually higher than standard ratings.