check the ping time between your nodes, whatever they are, in the same datacenter. I bet it will be at least 10-20ms. 15 years ago it was 0.1-0.2 ms.

Given that I get ~1 ms between basement and upstairs, going through three switches, this is indeed a sad state of affairs.

still 150 micros here. why would this go up?

Software defined networking adding latency. 10ms within a datacenter is crazy though.

Those NSA MITM attacks aren't free or fast