lucy24 - 8:23 pm on Aug 3, 2013 (gmt 0)
It isn't simply about load time but about number of requests in and of itself. Every server has a concurrent-requests ceiling. And until the first 6 or 30 or whatever it may be is out of the way, nothing else can happen.
Incidentally, some users-- including some with a fairly visible internet presence-- are still on dialup. Many more are on satellite, which by its nature can't get much faster.