Had a similar issue here: Asking questions in chat suddenly takes over 2-3 minutes per question - #2 by truell20
Unfortunately, no response from @truell20 after I provided all the details.
The annoying this about getting no response is that it still consumes credits, so if it happens 3-4 times a day and you retry the same question (which again fails), now you’re losing 10 credits a day for nothing 