Abnormally high, varied latency
My miners appear to have very high latency for share submission - varying from 70-300ms. 

<img width="624" alt="Screen Shot 2022-03-05 at 21 55 28" src="https://user-images.githubusercontent.com/25300749/156908579-94adfb3a-0790-4a29-b0c0-c5c0db5d54d5.png">

My geth node is on the same network (same machine in fact), and my psql is in the same Ubuntu machine.
I am using virtual machine software to run Ubuntu. Everything is operating on a high end NVMe PCIe Gen 4 SSD, so disk throughput shouldn't be a concern.

This varied ping is happening both on remote and local networks. I've ensured that the latency between the remote networks is low.
This is the first time I've operated with a pool, so I might not have covered all my bases. Is this the result of latency with Miningcore, or is this the result of the peer system on geth?
