The 'bets' tab is currently showing this for me:

The first 8 bets are from 8 different players all playing the same way, with nonces:
66345 51419 235625 68869 278888 265593 237621 59030
The nonces sum to 1263390. Does that mean that over a million bets were made by the same person? Or are these site-owned accounts doing some load testing?
Not site owned, have a testing environment for stuff like that.
ran a quick query and it looks like those 8 users have 1,296,187 bets and counting. They're placing a lot, and we could stop them to resolve some of the slowness, but my test env runs about 150 bet per second on reduced hardware, which is significantly more than we're getting in prod right now, so it seems like that would be treating a symptom not the cause.
Debugging still not giving conclusive results. Beginning to consider ancient and dark methods of debugging involving a chicken head and the reincarnated spirit of Dennis Ritchie.