Optimize Three.js Games Measure before changing behavior, then validate the same gameplay path after every optimization. Establish a repeatable scene Choose a deterministic representative encounter and record device, viewport, quality level, player position, enemies, active effects, frame-time sample, draw calls, triangles, texture count, and warnings. Compare like with like. Diagnose the limiting side - Suspect CPU when simulation, allocations, React work, pathfinding, or per-frame scans grow with actors. - Suspect GPU when resolution, overdraw, shadows, transparent particles, post-processin…