What's the most efficient way of replicating big structs?

Hi, thanks for replying. But wouldn’t I still need to send the chunk data to the clients when the players joins?

I’m also noticing that the major problem is that actors takes too long to replicate, I have 625 chunks and it takes around 5 minutes to replicate all of them, but I also have found someone having a similar problem with way less data: Initial actor replication optimization - #5 by Justin.Dooley