"Both are probably because the game was originally made in old Game Maker, so its ability to support fancy new features like multiple OS support and modern online netcode is inherently limited"
-Fair point
"and also it would be nice to have a tier list that sort out every single character (for example S tier: C.falcon...)"
-I know the devs aren't included to make a tier list so why don't the players make it.I mean i can make one but i don't myself enough to make a true tier list because obviously i don't main every character and some of them are underrated so it feels so hard to make one