Performance Insights

I see a lot of /wp-json/wp/v2/* calls in the slow pages. Makes a lot of sense because they are basically DB queries and might not be cached. I would love to know where the calls are coming from. The referring page perhaps.

Echoing what a few others have mentioned. Our slowest pages seem to be block editor related, and not as helpful as showing the slow public facing pages.

I appreciate you all making an effort to share more data with your customers, but I think the Performance Insights beta is too high level and not very useful. I'd like to be able to dig into page level data. Which pages / requests have the: lowest cache hit ratio? highest error rate? highest latency? What is the CPU and memory usage over time? What are the: slow database queries? long API calls? slow transactions? long external URL requests? Can you share any data that can point me directly to what I need to investigate? Can you share any info that can point me to potentially non-optimized plugin and/or theme code?

While looking at "Essential metrics" > "Error rate" I thought to myself that a link to "Advanced" > "Logs" would be handy. So I could look into any errors that were being flagged in that section. Any other links to pages related to the other "Essential metrics" widgets would be great too. Though I didn't dig into those.