The portal seems to be doing some very CPU intensive work and freezing up for 5 to 10 seconds quite frequently. This is recent, probably within the last 5 days or so that I noticed it happening, and doesn’t seem to be affecting the API at all.
Is this known / affecting others as well, or am I special? 
Hi,
It is actually not doing CPU intensive work, but sending background network requests. For some pages it has to send lot of requests. Are you facing the issue in Customer Portal or Admin Portal?
We don’t have any other reports of this issue from other customers.
It’s been happening in the admin portal - The browser has the CPU pegged at 100% while it’s happening, and the UI is unresponsive, so it must be polling instead of sleeping / waiting. Not the end of the world, but it feels like it’s become less responsive recently.
It’s also been running out of memory and shutting down the page completely, and frequently allocates over 3GB.
I suspect a crash may be causing this issue, a crash in a loop can cause exactly what you mentioned. Do you face this issue on any specific page?
Can you share the console log of the browser when you get this issue?