Java Realms Latency

Myself and everyone on my brand new realm have a consistent ping over 250, often spiking up to 400. It is not a network speed issue, I can flawlessly stream 4k video and have played other online games with ping under 20 ms.

50% of the players are based in Brisbane, Australia and 50% are in Sydney, Australia.

I am wondering if the realm has been allocated a server outside of Australia? And if it could be changed so that there is less latency. It makes combat impossible, and block placing rubberbands really badly.

 

To reiterate:

• it is not my network - there are multiple players with the same problem, I'm on a high speed wired connection; 
• it is not the world - there is no redstone or large amount of entities, the latency occurred when the world was brand new;
• I have tried resetting the world, turning the realm off and on again, completely vanilla client, completely vanilla server world, one player at a time. 

 

Thanks for reading.