People want responsive interfaces, absolutely. Whether the interface is implemented as full page requests to servers or AJAX requests is irrelevant to users.
Bare AJAX itself almost always will perform better than a full page request, but as you layer on additional requirements, frameworks, libraries, etc. that isn't always true.
I think old reddit and new reddit are a great example of this - both are processing the same data and presenting a very similar UX. But at least for me, the relatively javascript light old reddit interface with full page reloads feels much more responsive and usable than the new site.
Ask yourself: Do "people2 prefer looking at "spinners" or more-or-less animated "page loading..." texts?
Waiting time is the issue, the technology is not.
A server generated page that loads fast beats a Framework-generated page hanging every time!
As for technology:
With "classic" server generated pages "people" will know what is going on (browser indication tht page is loading) and they will know what to do (wait a few seconds at most). With frameworks "people" are left out in the cold with no indication what the problem really is and no apparent remedy or path for solution as a page refresh might interfere with state logic or whatnot bringing totally undesired results.
