Hi,
I've had an ongoing issue with regular latency spikes for months. I've included a BQM below showing the issue. For the time being I am unable to provide hub stats, apologies.

Recently, this stopped happening briefly as seen from the screenshot on the 14th of April below:

However, now the latency spikes are back, and for some reason there is now a problem with service between about 19:45pm and 22:00pm. Below are some consecutive days in late April.





Sadly, some days even look like this:



While I'm aware of, and expect, the latency spikes at this point, the graphs you see here are absolutely not normal.
This is obviously not a usable service, and I would like the problem to be resolved as soon as possible.