I have a couple of questions regarding the page performance tracking in Matomo.
[A little backstory]
Is there a way to measure how much time did the browser spend before a request was delivered to the server? Does “network time” measure exactly this metric? Does “transfer time” metric show any slow network download speed? And when the goal is to prove there is a network problem, how reliable Matomo’s page performance measurement is in comparison to browsers’ developer tools or addons such as Performance-Bookmarklet (https://github.com/micmro/performance-bookmarklet)?