Performance matters
Performance is a quality dimension viewers will notice without measuring anything [1] [3]. A viewer presses the remote, the splash screen stays on screen for a little longer than desired, and they're already deciding whether the app is slow and unusable. A slow launch, a stuttering menu, or a stalled scroll pushes viewers to uninstall and not return.
Strong teams treat Performance and Efficiency as ongoing work, not a periodic sprint, and bake it into how every change is reviewed before it ships.
Performance drives all product features of the application, strong content, thoughtful design, and personalized recommendations cannot survive a blank launch screen or a UI that drops frames while navigating. A viewer who waits four seconds for a home screen is making a judgment about the catalogue before they have seen any of it. When startup is fast and navigation holds steady, the work the content, personalization teams have done actually reaches the viewer. When it is not, that work is paid for but not received.
Resource efficiency matters
