I was really hopeful for Ivy due to the bundle size improvements and was kind of expecting a silver bullet and saw around a 2% improvement. From their blog post:

- Small: 30% - Medium: 2% - Large: 25-40%

Our initial Angular 1 bundle was around 1mb. After updating to Angular 2+ it was around 2mb and after leaving the company in the hands of developers who were fairly junior I can see that their main bundle has now grown to 2.8mb. Another project with various junior devs has 2.9mb.

This is what is frustrating when I see our sister company pull out a 1mb react app with little effort... No matter how much effort I put in, it's never going to be achievable. Our package.json is extremely conservative as well.

https://blog.angular.io/version-9-of-angular-now-available-p...