Hello,
1. Make fewer HTTP requests:
For this, you need to combine external JS and CSS into one. For this, it’s best to use manual minify and add the JS and CSS files manually using Async.
2. Use cookie-free domains:
If you have WordPress setup on https://www.domain.com, then all your static files (images, CSS, js) are served along with cookies set on the domain.
The basic solution is the create a subdomain of your main domain (or register a whole new domain just for it) and serve your static files from that domain.
If you are using any CDN they can help you with this
3. Add Expires headers:
Go to Performance>Browser Cache and select Set expires header. Also, select Set expires header in every sub-box.
4. Compress components with gzip:
Also in Performance>Browser Cache select Enable HTTP (gzip) compression
