Fast transfer server

Currently the "fast transfer" plugins are out of date, and when you try to transfer to another server, it takes forever.

I know that WaterDog exists, but I don't know how it works or how to configure it (for many yt videos that come out explaining it)

So is there a way to make transferring from one server to another not so slow?

 

Write your own proxy if you don't want to use waterdog