> JavaScript itself is not what makes websites slow It is, but not inherently. Lots of sites are shipping: - far too much of it, even if it’s not in use - wi

> JavaScript itself is not what makes websites slow It is, but not inherently. Lots of sites are shipping: - far too much of it, even if it’s not in use - wildly inefficient code which blocks unnecessarily - lots of stuff cobbled together from third parties without regard for its impact - far too much on load, both in terms of payload and what gets executed right away This isn’t just advertising materials or whatever. Most of these points are true by default with eg a Next.js site, even if it’s also SSR/SSG.