If y test my page with PageSpeed Insights i get error:
JavaScript and CSS resources that are blocking the rendering, in content "above the fold" eliminate (above the fold)
Your page has 18 blocking script resources and 14 blocking CSS resources. This causes a delay when rendering your page.
No page content "above the fold" (visible without scrolling) could be rendered without having to wait for the loading of the following resources. Try to move blocking resources or asynchronous to load, or load-critical areas of these resources directly inline in the HTML.
Remove JavaScript that blocks the rendering:
I get a bad range. can i do something or you have some Update for the templates?