React 18: Issues with Prop Drilling and Performance when Rendering Large Lists
I've been researching this but I'm working on a project and hit a roadblock..... I'm relatively new to this, so bear with me. I'm facing performance issues with a component that renders a large list of items (about 10,000 rows). I have a parent component that fetches the data and passes it down to multiple child components using prop drilling. The child components are supposed to render the data, but I'm seeing significant lag when the component updates. I've tried using `React.memo` on the child components to avoid unnecessary re-renders, but it doesn’t seem to make a difference. Also, I'm using React 18's `useTransition` to make the UI feel more responsive, but I'm still experiencing dropped frames and jitter during updates. Here’s a basic structure of what I have: ```javascript const ParentComponent = () => { const [data, setData] = useState([]); useEffect(() => { const fetchData = async () => { const response = await fetch('https://api.example.com/large-list'); const json = await response.json(); setData(json); }; fetchData(); }, []); return <ChildComponent data={data} />; }; const ChildComponent = React.memo(({ data }) => { return ( <ul> {data.map(item => ( <li key={item.id}>{item.name}</li> ))} </ul> ); }); ``` When I check the Performance tab in Chrome DevTools, I see that the paint times are quite high, and I often receive the warning: "This element is consuming too much rendering time." I've also tried splitting the data into smaller chunks and only rendering the visible items with a virtualized list using libraries like `react-window`, but the performance issues still persist. Any advice on how to effectively manage state and optimize rendering in this scenario would be greatly appreciated! This is part of a larger service I'm building. Any ideas what could be causing this? My development environment is macOS. Any help would be greatly appreciated! Is there a simpler solution I'm overlooking?