The Glimpse javascript panel shows a nice summary of http timing information. The time spent on the wire, the time on the server, etc....
However when you view the information using the pop out, that information is no longer accessible. I can't find http timings anywhere. Is there anyway to view this information without viewing it directly through the javascript injected panel?
Unfortunately, at this point, the answer is no.
There has been some community work to bring the full data set available from the navigation timing API into Glimpse.
That effort is a bit stale now, but if you'd like to pick it back up you'd be able to get not only http timings, but all of the following:
AND it would work in almost all browsers (excluding oldIE).