How to Test If Your Website Has Render-Blocking Resources
In practical terms, your WordPress site will load slower. In short: the immediate need to use the resource will determine if the resource is render-blocking or not. Tracking codes, such as Google Analytics code and Facebook pixels, are render-blocking resources. As a result, the page takes longer to load. Users would enjoy a better user experience, and performance metrics would be good, too. In short, the CSS and JS render-blocking resources delay the rendering of the page for no valid reason. For one, some crucial performance metrics will get worse.