You’re very welcome. I understand.
Keep in mind that those scores were developed as a guide to help site owners improve the page load times.
The actual scores themselves mean nothing, if not tied to site performance.
So the goal is improved page load time, not improved score. The higher score can lead to a better page load time, but not necessarily. There are plenty of sites that have high scores and terrible load times.
There are a number of speed issues that automated evaluations like these cannot properly address (such as database issues, PHP errors, page caching, and other backend issues).
They are giving you a list of things that typically slow down a site. This is general advice and not every item will be applicable to every site.
You can follow all their advice and still have a slow site if you have other undiagnosed issues on your site, yet they could give you a high score. Conversely, you can ignore some of their advice and improve your actual speed more than if you follow it exactly.
When you’re talking about page load speed affecting SEO, Google and friends will be more concerned with the actual load speed of a site than the scores. Again the scores are meant as a guide to help site owners…they are not for Google. Even with that said, the speed factor is still a much smaller part SEO algorithms than the basics of building links to your site and developing interesting & relevant content.
Speed improvements should be prioritized first and foremost for site users, not search engines…you lose customers/clients with a slow site. (Amazon did studies on this.) On the other side, a fast site provides a much better experience for users, and they will love you.
Hope that helps!
– Scott