flutter-core:flutter-performance

Fix Flutter jank by profiling critical screens in profile mode with Flutter DevTools to identify rendering bottlenecks. Apply targeted optimizations like const constructors and RepaintBoundary, then re-profile to confirm frame rendering improvements and achieve smoother scrolling.

Slow startup and heavy rebuilds in a Flutter app often stem from unnecessary widget rebuilding and blocking operations. Diagnose these performance issues using a measurement-first approach with DevTools to trace builds and apply deferred loading to reduce initial work.

Reduce memory pressure in a Flutter app by profiling memory usage with DevTools to identify spikes. Implement memory-management patterns and lazy lists to optimize how assets and widgets are loaded and retained during navigation.

Use RepaintBoundary to isolate and limit repaints to specific screen areas, and apply const constructors to prevent unnecessary widget rebuilds. Verify these rendering optimizations by measuring frame rates in Flutter profile mode before and after implementation.

Profile your Flutter app whenever scrolling becomes choppy, startup is slow, or memory usage spikes. Use Flutter's profile mode and DevTools as a measurement-first diagnosis step before applying any performance optimization patterns to ensure you target actual bottlenecks.