It's odd that you come up with these numbers so consistently. About the worst I ever get is 6 seconds or so and that's rare. Earlier today, I disabled cache and reloaded a page every ten seconds for ten or fifteen minutes to see if I was just missing the spike... nothing. Everything was fast.
I can't really think of anything that would be so particular to individual users that some would be fast as some would be slow. Especially if most of their load time is accounted for by the time spent on queries - because that is all server side.
I post these screen shots from work and from home. Two different Internet providers. But that shouldn't be taken into consideration.
I like to think that this slowdown is happening to everyone, but not everybody is reporting the slowdowns in this thread. I, and a couple of other users have been more diligent in posting our results. Again, I only post screen shots of half of the slowdowns I get because I'm lazy. And I only post the ones above 10 seconds.
These numbers make it look like your own internet connection may be a problem also. So that 17 second spike spent on the queries is definitely high. But what's interesting is that you have an even longer delay just downloading the page.
Also, I am not seeing how the speed of Ditch's Internet connection has anything to do with the times he posted. He could be using a 1200 baud modem and the time for that particular page to be generated would still have been 59.237 seconds. Or am I missing something?