What performance metrics are affected by slow pagespeed?
Clickthrough rate
Viewthrough rate
Conversion rate
Impressions
Explanation:
Optimizing the critical rendering path allows the browser to paint the page as quickly as possible: faster pages translate into higher engagement, more pages viewed, and improved conversion.
Read more here: https://support.google.com/partners/answer/7336587
Identifying and resolving critical rendering path performance bottlenecks requires good knowledge of the common pitfalls. Let’s take a hands-on tour and extract common performance patterns that will help you optimize your pages.
Optimizing the critical rendering path allows the browser to paint the page as quickly as possible: faster pages translate into higher engagement, more pages viewed, and improved conversion. To minimize the amount of time a visitor spends viewing a blank screen, we need to optimize which resources are loaded and in which order.
https://www.youtube.com/watch?v=aOpYn-9SADo&t=2s