Deliverables:
• Chrome DevTools & Spector.js GPU draw-call breakdown isolating exact render-loop bottlenecks.
• Memory leak isolation (detached DOM nodes, unreleased textures, and un-disposed GPU buffers).
• Concrete pull request / code patch delivering locked 60 FPS performance on mid-tier mobile devices.
• 10-minute video walkthrough detailing before/after empirical benchmarks and optimization roadmaps.