I have no metrics in the frontend, it's reasonably fast for me. It's the interactions with the backend that are slow. This is evident for anyone that's used the api.
Unrelated, but... we've got a jira input field that keeps moving the cursor to the end of the input field on each keypress. Perhaps that all do that(?), but it's noticeable when I'm pasting in a URL and want to change the beginning part of the URL.
Example: server-abc.example.com, need to change to server-def.example.com - changing the A then moves the cursor to after the .com, which is also beyond the end of the input box, and thus invisible.