DESIGN SYSTEMS SHOULD BE FAST BY DEFAULT

Summary from the TLDR Design newsletter

Slow design system components make every app built on them slow, so performance belongs next to accessibility on the team's priority list. Timing ten popular systems on a 249-country dropdown and 100 checkboxes found Fluent and Carbon quickest to open the dropdown and Ionic by far the slowest. Playwright tests with explicit budgets, virtualized long lists, and published performance numbers keep components fast by default.