Angular and RxJS are cool technologies that make it easy to develop web pages. Unfortunately, they also make it easy to build an inefficient page that will bring the browser to its knees. While rewriting Google Cloud Platform (GCP) in Angular, we have observed and tackled significant performance degradations. In this talk, a summary of learnings and common pitfalls will be shared. About Mert Değirmenci Mert Degirmenci is a software engineer at Google working on GCP front end. He has spent past ~3 years building & fixing common components that are used across all pages in GCP. Besides dealing with ExpressionChangedAfterItHasBeenChecked errors, he loves to spend time with his wife, newborn daughter, and dogs. Premier Sponsor: ag-Grid (ag-grid.com).