Have a long initial page loading time? check this out. Have your web app ever been complained about taking too long to load? Have you ever been given a task to “optimize performance” of the slow app? There are tons of topics about improving your app’s performance, such as lazy loading, change detection, server side rendering, etc. One of the topic I want to talk about here, is optimizing Angular bundle size. It’s extremely easy and useful. Step 1: Know your Bundle Size It’s hard to deny that i