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I see the first "Current delay" message at 10:32:08,036 in the log.
What did you notice before? The sockets in CLOSE_WAIT?
This is possible, because the "Current delay" messages are logged only for...

I confirm that delays in the establishment of the sessions are visible in the log.
In particular, you can refer to lines like the following:

31-Aug-20 10:35:13,240|WARN...

Hi,
We have sent an upload url via a private message.

Sockets in CLOSE_WAIT are unexpected, because it means that the system has detected a closed socket but the Server has not yet detected it....