I have been working on improving my angular app performance(using LightHouse) so I start from top. I removed everything from app.module.ts and app.component.ts and form app.component.html. Template file I only <p>Test</p> and the performance is 92% but when I added a div <div>Test2</div> the performance reduced to 70% I tried this many time but still same. Does using the div tag causes the performance and I also checked the css rules there isnt any extra css applied on div than display:block . Please share inputs Thanks Continue reading...