The release target assigns explicit budgets for initial JavaScript, images, fonts, and main-thread work. Meaningful text and controls should render without WebGL; richer motion should remain progressive enhancement.
Real-user percentile monitoring is planned production work, not current evidence. A visual effect that repeatedly harms interaction or reading performance will be simplified, deferred, or removed once that evidence is available.
Spectacle earns its frame after usefulness has loaded.Review the performance budget