@Woody
I basically agree Woody, there are plenty of folks out there many thousands of miles away and even in different countries who get pageloads of 3 seconds no matter what. The basic ECF set-up is very fast and we have enough proof of that. For example our commercial manager consistently gets pageloads of any post page in 2.5 seconds, on any thread, no matter how heavily loaded the forum is, when browsing as a guest; when logged-in the load time is 3 seconds. He's 3,000 miles away in another country. The thing I hate about this is that he has a Mac. I have absolutely no reason to disbelieve him, although as he's a Mac owner we do of course always have that slight suspicion.
The vast majority of people with slow pageloads have a DNS, network, PC or browser issue (and quite likely all four).
However some may be getting jammed up on a faulty server, or have a less than optimal local CDN, and this cannot be discounted of course. This is what I'm trying to track down now. We could easily have a server fault on one of the boxes, and our guys need to hunt this down if it's there.