What problem does it solve? GSAP animations can cause jank, dropped frames, and layout thrashing when developers animate layout-heavy properties or create too many simultaneous tweens. This Skill provides concrete rules and patterns to keep animations on the compositor thread and maintain smooth 60fps rendering. ## Core Features & Use Cases - Compositor-Friendly Properties: Guides you to animate transform and opacity instead of width, height, top, or left to avoid layout and paint costs. - Efficient Update Patterns: Covers gsap.quickTo() for frequently updated values like mouse followers, stagger for lists, and will-change usage. - ScrollTrigger Tuning: Explains pin promotion, scrub values, and debounced ScrollTrigger.refresh() calls to reduce scroll-related work. - Use Case: A developer notices a page with animated cards stuttering on scroll. Apply this Skill to convert left/top animations to x/y transforms, replace per-element tweens with stagger, and debounce ScrollTrigger.refresh() calls. ## Quick Start Review my GSAP animation code and optimize it for 60fps performance using transforms, quickTo, and proper ScrollTrigger settings.