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Learn to optimize performance in large-scale React and Node.js applications through this 34-minute conference talk from DevConf.CZ 2025. Discover real-world performance challenges faced in high-traffic applications, including those powering live sports platforms, and explore practical solutions for reducing API response times, preventing memory leaks, and optimizing frontend rendering. Master techniques for reducing API latency through optimized database queries, caching strategies, and async processing in Node.js environments. Gain expertise in memory leak detection and prevention using Chrome DevTools to identify and resolve memory issues in both React and Node.js applications. Explore frontend performance optimization strategies for handling large datasets with AG Grid and virtualization techniques to improve UI responsiveness. Understand best practices for scaling applications while balancing state management, network requests, and UI rendering to deliver smooth user experiences. Through real-world debugging examples and Chrome DevTools insights, acquire actionable strategies to build high-performing, scalable applications while avoiding common pitfalls in React and Node.js development.
