Just checked out that all the page speed sites do not load the demo correctly, which seems to be the reason for the high page speed results.
For example, testing the blog page of dante the image of google page speed shows just a black site, not looking like dante: http://developers.google.com/speed/pagespeed/insights/?url=http%3A%2F%2Fdante.swiftideas.net%2Fblog-timeline-full-width%2Fblog-mini-left-sidebar%2F&tab=desktop
So in fact, the page speed of dante is never 90+ as described!
