Why Your React App Loads Slow and How to Fix It
In a huge React app, you don’t want every line of JavaScript bundled into a single, giant file the moment someone opens your site. Instead, smart code splitting lets you serve just the code that matters for the route your user is visiting.
With React Router and React’s native lazy-load tools, you can dynamically import components as needed. Wrap them in Suspense, and you can provide a seamless loading state while chunks download. The initial load shrinks dramatically, especially when you break big pages or rarely-used components away from the main bundle.
Every time you do this, you make your app faster by delivering less up front. And don’t forget, this also helps your time-to-interactive: people see something useful sooner and are happier for it.