Why Progressive Web Apps?

Many static web pages do a fantastic job of performance. However, when all you need to do is render some HTML, CSS, and a smattering of JavaScript, it's less of a struggle to work well under all network conditions.

When we start talking about web applications--large, complex, JavaScript-based workhorses--performance becomes a significant challenge. Our frontend will have a lot of code. Our user needs to download all that code if they want to use our app to its fullest potential. How do we ensure that they're not staring at a blank loading screen for ten seconds, as 500 KB of JavaScript initializes?

Therefore, most of our performance enhancements will center around managing the JavaScript problem. This is especially true with React.