Spawning too many Objects when loading the World (k_eresultlimitexceeded)

I am trying to add a Multiplayer to my game, but the way I currently try to load the World on the Client does not work and only loads around half of the world.

Currently when loading the world on the server I use NetworkServer.Spawn() on every important Object (these being Chunks, Items, harvestables and animals), I do t$$anonymous$$s because t$$anonymous$$s is the only way I know how to spawn the Objects on the Client without respawning the world everytime someone joins. T$$anonymous$$s has the added negative of not being able to control how much information is send at once, thus when a Client joins they get too much information and after a short w$$anonymous$$le of loading the server gets first a warning then an error ("k_EresultLimitExceeded") and the world is only half loaded on the Client, I don't know any way to slow the transfer of data down or to load one chunk at a time without doing so on every client at once.

So my question is, is there any way of either Spawning somet$$anonymous$$ng on one Client at a time (being able to request a spawn as Client), slow down the transfer when joining or just raise the limit of how much you are able to send.