voxel.StreamingReadyQueueDepth=8 admits one extra worker-set of prioritized tasks; voxel.StreamingBackgroundWorkerCap=1 sizes slots to the 8 TaskGraph background workers actually running tile tasks. Full set 5.96 -> 4.91 s, LOD0 1.40 -> 1.09 s, ring 0.49 -> 0.51 s, 40 m/s ring 75/75. Tick p95 +0.6 ms spawn / +0.26 ms walk, max flat. No geometry change. Report: Standalone/Research/WorldAssemblerM3/Round16. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ