does the gap between rapid and blitz decrease for most people as you go up?

You cant compare rapid and blitz ratings, they are 2 cometely different things

Your dumb

Magnus Carlsen 3233 blitz, 2896 rapid
https://www.chess.com/member/magnuscarlsen

"ll I know is I suck so hard at lower time formats"

Cheating detection at lower time is not working. Why? Because I suppose it's considered to be a lucky game. I watched a stream from GingerGM about how to go from 900 to 1000 elo rating, he lost 2 games and he is GM.
And what I notice when cheaters blunders early in the game, they start playing perfect chess.. Yesterday in a blitz game, a player blunder knight at 4 move , he got 92% precision game

I know that a lot of players when they piece up start playing very bad chess (just trade pieces and go to the end game, like me in this game), in this game, I blunder knights later on. But when I analyzed the game, It was a draw (just +1.12), even with my knight up (2 moves before I blunder a knight).. How is this even possible with 1400 elo Blitz player?

42, moves game, 1 blunder, 4=normal move, rest was top engine move.., 0 mistakes.

How he is not a cheater?. Even to lower down his precision he could take my bishop at the end of game he did not, he picked up a lesser move which was not a mistake.
Cheat detection is not working on lower time formats.

After blunders, perfect chess This is not detected.

As players become more experienced and proficient in chess, they develop a stronger ability to recognize patterns and motifs quickly. This allows them to make faster and more accurate decisions in blitz games, leading to a smaller rating gap between rapid and blitz.