Modern tools are fun to use and they are useful to create websites with great performance.
This talk aims to show how to apply ideas like code-splitting, lazy-loading and CSS-in-JS (aka JSS) to websites built with components. This represents a superior way of delivering to the user only the assets that are needed and it's essential for creating fast loading sites.
We might be suffering from JS fatigue, trying to keep up to date with the latest and greatest. We don't need to rush, just understand what these techniques do and how they fit in the bigger picture.