Regarding Davids response here:
https://kriesi.at/support/topic/google-pagespeed-insights/
How do I execute moving those items?
Hey aribann!
This response implies that you have a deep understanding of how to performed such operations, if you feel comfortable modifying .htaccess ( to add mimes to it .css.gz / .js.gz ), uglyfing files via any web service or using either gulp or grunt, identifying critical or above the fold css, which css should be inlined or not, the list goes on and on, there might be some one at http://studio.envato.com/ that can help you out doing this reliable / cost effective solution.
Cheers!
David