Flutter UI Performance Engineering

Optimize the dominant measured work, not performance folklore. Preserve correctness, accessibility, visual intent, bounded memory, battery life, and maintainability.

Establish the runtime

Before advising or editing, inspect:

flutter --version
dart --version
pubspec.yaml and pubspec.lock
target platforms and minimum OS/browser versions
renderer/backend and platform views
target device tiers and refresh rates
existing performance tests, traces, and telemetry