Another measure is "How many seconds does the page need before you can click on something". Be careful with third part providers like share button services: they might do a lot of extra request in the background and make user wait for the first interaction @theystolemynick
You can use dev tools to measure CPU usage.
Another interesting metric you can find in the Lighthouse tool is "time to interactive" to guess when user can interact with the page. It's a mix between quietness of the CPU and number of requests @theystolemynick
How to deal with that? Well, know your users and check performance on real low-end devices.
You can use the chrome DevTools with Android devices.
There's also CPU throttling feature on chrome desktop but this is not enough you won't emulate the CPU :/
A Mastodon instance for Designers and Makers of all things — Developers, Engineers, Builders, Creators, Tinkerers & Misfits!Though you make design your life, all that inspires you is also welcome here.