My site has become unusually slow which seems to be the case in other sites on different benches. Sometimes the site will load at normal speeds but other times Ive seen some of the item link fetches become too slow. Sometimes the login page itself takes more than 20 seconds to load. Below is an example of a call which 3.6 seconds to load the link field during which the site was completely frozen.
Below is loading into the site freshly after clearing all cache. The site took ~50 seconds to render completely.