This article explains why that conclusion can’t be drawn from the original data. We’ll also look at how devices and the web have changed over the past 10 years, and what those changes have meant for web performance.
https://www.debugbear.com/blog/is-the-web-getting-slower
origin - https://www.pipiscrew.com/2020/09/is-the-web-getting-slower/ is-the-web-getting-slower