What the customer wantedQuickly shop on Woocommerce. Many consider Wordpress and Woocommerce - it "heavy" engines. But with proper approach it is quite possible to achieve result 86-90 in Google Page Speed, which is confirmed by this store. You can see and check it: elitenootropics.com
What has been doneThe main secret in the rejection of unnecessary plugins, and get required JS/CSS files only where necessary.
A simple example - it is familiar plugins like Slider Revolution or Contact Form 7 include scripts and styles on all pages of the site, but this scripts/styles used only on the main page and on the contacts page, respectively.
In this site, the slider was integrated directly into the theme, and customer can manage it on the template settings page. And via simple function, Contact Form 7 loads additional files only on the contacts page.
Additionally, implemented several skins with the ability to switch between them.