Sep 30, 2019 02:03 AM|Fei Han - MSFT|LINK
Welcome to ASP.NET forums.
sometime it is working getting for 2 to 3 days, then suddenly it is getting slow.
In browser f12 developer tool network, you can try to capture request and check timeline for the network events of the request (such as Connecting, Sending, Waiting(TTFB), Downloading etc), then you can share
the detailed information or screenshot so that we can troubleshoot the issue based on it.