how to solve slow loading in multiplayer

[好啊好啊]

It takes 15-45 minutes to load each time, purely random. If you want the game to sell multiple copies, I think you need to solve this problem. After all, if you can have people play together, others will be recommended to play the game together,

[Terotrous]

It's much faster if the map size is medium.

That said, I think what it's doing is transferring the save file from the host to the client players, so a fix would probably be to just store the save file locally on the client. Then you'd only have to send it to them if you determine it doesn't match.