IIRC the way federation works, a server sends a message and then waits for an acknowledgement before sending another one. So a 250ms round trip time to Australia means a hard limit of 4 messages per second no matter how fast the internet link is.
We had a lot of trouble with lemmy.world a while back because they were just plain generating more messages than they could send us so we were lagging further and further behind.
Lemmy can have multiple simultaneous connections between servers now to get around the latency throughput limit, but that might be something server admins need to configure.
IIRC the way federation works, a server sends a message and then waits for an acknowledgement before sending another one. So a 250ms round trip time to Australia means a hard limit of 4 messages per second no matter how fast the internet link is.
We had a lot of trouble with lemmy.world a while back because they were just plain generating more messages than they could send us so we were lagging further and further behind.
Lemmy can have multiple simultaneous connections between servers now to get around the latency throughput limit, but that might be something server admins need to configure.