Performance Optimization Techniques for Large React Native Apps

1. Use FlashList instead of FlatList

Shopify's `FlashList` recycles views much more efficiently than the standard FlatList, crucial for long lists of data.

2. Memoization

Prevent unnecessary re-renders of child components by using `React.memo` and `useCallback`.

const MyItem = React.memo(({ title }) => {
  return <Text>{title}</Text>;
});