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Sorry mate, Google Analytics 4 (GA4) doesn’t have built-in tools the way GA3 does for tracking site speed. You’re going to have to DIY this one – you’ll need to generate your own data using custom metrics on the page_view event and create a tailor-made report.
They’ve got this interface called PerformanceNavigationTiming with loads of timing information you could use. Have a look. [PerformanceNavigationTiming] (https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming)
The Core Web Vitals include Largest Contentful Paint (LCP), which is about page load speed. Google Chrome’s developed a library that might come in handy – [web-vitals](https://github.com/GoogleChrome/web-vitals)
In fact, there’s loads of write-ups online about nailing the Core Web Vitals in GA4, exporting the data to BigQuery, and then pulling up reports in Looker Studio. I’ve even chipped in with my two cents 😁. So, keep experimenting, you’ll figure it out!
