Flutter Impeller: Why the New Engine Ends Jank and Delivers 120 FPS Performance | Stackademic
Article Summary
Flutter's biggest performance criticism just got answered. Impeller, the new rendering engine, is rewriting the rules on cross-platform smoothness.
Flutter developer Roshni Savaliya breaks down why Impeller represents a fundamental architectural shift from the original Skia engine. This isn't an incremental update—it's a complete rethink of how Flutter renders pixels on screen.
Key Takeaways
- Impeller compiles shaders at build time, eliminating runtime jank entirely
- Targets consistent 120 FPS on high refresh rate displays like ProMotion
- Uses Metal on iOS and Vulkan on Android for platform optimized rendering
- Solves shader compilation stutters that plagued Skia based apps
Critical Insight
Impeller moves shader compilation out of runtime to deliver predictable, jank-free performance that finally matches native app quality.
