Let's talk lag!

[Naximous]

I started noticing the lag spikes just after the server reorganization. There used to be 4 servers: LLJK1(US), LLJK2(US), LLJK3(EU) and LLJK4(EU).
Somewhere at the start of 2016 it was changed to 3 servers, presumably to concentrate server-population: LLJK1, LLJK2 and LLJK3(RP).
From my experience:
LLJK1 shows at the top of Byonds server list, presumably because it has the lowest latency in general. However, ping-time will frequently spike.
LLJK2 is mostly empty and is very low on the list.
LLJK3(RP) always has a few players.

Since most of the population on Goonservers is on 1 server, and there are no location divisions for the servers any more, everybody in the world who plays Goon is on 1 server.
Could there be more lag on the server because the players on that server are more geographically spaced out?
If so, why is LLJK2 consistently the lowest on my server-list, even though it is unlikely that the one other player is based in a very remote location compared to everybody else on LLJK1?

Actually they are LLJK1, 4 and 5(RP)