https://twitter.com/BrianBirming/status/1567377254849855488 Hope this clears it up a little for you.
Edit:
Also, like 10 minutes ago: [Classic] The unacceptable state of Classic servers - #7 by Aggrend-1483 A blue replies with more information.
There’s no technology solution to this. There is no hardware solution to this. This situation will not improve when Wrath of the Lich King Classic launches on September 26th, it will only get worse.