Discover practical performance tips for building Progressive Web Apps in this 32-minute conference talk by Narendra N Shetty. Learn how to optimize initial screen rendering for mobile web applications using React, drawing from Shetty's experience in developing Uber's mobile web platform. Explore techniques for caching with service workers to enhance repeat visit speeds. Gain insights on performance-conscious development, including considerations for external library usage. Delve into topics such as round-based chunk routing, server-side rendering, browser caching, preloading assets, and HTML streaming. This talk is ideal for developers focused on performance optimization in web applications.