## Diagnostic Summary Your 2D Android platformer runs at 25 FPS on low‑end hardware. CPU spikes are the main bottleneck. ## High‑Priority Fixes 1. **Object pooling for collectibles** – eliminates GC spikes Impact: High | Effort: 1 hour `Queue<GameObject> pool; // reuse coins instead of Destroy/Instantiate` 2. **Disable realtime shadows** – low‑end cannot afford them Impact: High | Effort: 5 minutes 3. **Cap frame rate to 30 FPS** – prevents thermal throttling Impact: High | Effort: 2 minutes (`Application.targetFrameRate = 30;`) ## Quick Wins - Cache GetComponent calls in Start() - Use FixedUpdate for movement, not Update ## Tools - Unity Profiler (Deep Profile) → find spike methods - Frame Debugger → check batching