I've been wondering if maybe we should include something on the wiki regarding improved performance, but I was afraid that the wiki may be tueidj's baby and that we would be publicly shamed for changing anything other the compatibility fields.
My thinking is, the performance improvements makes some things that were pretty much completely unplayable suddenly become very-much playable. This is not something that is typical of USB loaders, so to me I feel extra attention should be called out on such functionality.
Example Game: In Midway Arcade Treasures 3, that "Single Race" mode in Rush 2049 is pretty much useless with 3-4 players since it runs at like half speed, which is boring and annoying for a racing game; 2-player runs mostly well with a few moments of slow-down. Devolution makes 3-player run BETTER than even 2 player did on the GameCube, though 4-player is unchanged; meanwhile 2-player is flawless.