I've played for a while and i've seen that in classic mode for example the character that the player selected loads everytime that a match starts, and all the items take some time to load too
It would be better if the game manages the data in memory to have some loaded in the entire time you're playing the classic mode.
Also the game loads unnecesarily the items in the boss mode, platform mode, race mode and hit the target mode.
This little improvements would make the game much more playable as the loading screens are so annoying for all.
I hope the devs read this and make something with the loading screen.
Good work!