Google just announced a "PageSpeed" service that you can use (https://developers.google.com/speed/pagespeed/service), where you essentially host your site on their servers.
Using that would forever fix their viewing of your pagespeed, since they'd be viewing it from their own servers. Though who knows if it's faster than other CDN networks...
I'm sure it would considerably speed up the serving of your content though, since Google is all about making the internet faster.