Joomla 4 performs exceptionally well out of the gate on Google Lighthouse at Joomla Australia's Virtual User Group. Google Lighthouse is Google's open-source, automated tool that gives you feedback that you can use to improve the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, SEO and more.
Read more https://magazine.joomla.org/all-issues/october-2021/the-new-metrics-for-web-performance
