v1.0.21 — Explosion Optimizer + Physics Limiter

Performance modules:

• Explosion Optimizer (explosion-optimizer) — Caps concurrent explosions per tick (prevents mass-TNT spikes), reduces blast radii per entity type (configurable multipliers), and can disable block destruction per source. Explosion ray-casting is O(radius³) — on PvP/raid servers this alone can consume 40–60% of a tick. Lag-aware mode applies an extra radius reduction when TPS drops.
• Physics Limiter (physics-limiter) — Rate-limits block physics events (falling sand/gravel, water/lava flood, redstone propagation) per chunk per tick. Sand cannons and water floods generate thousands of physics events per tick; this cap prevents cascades from freezing the server. Material-filtered (only tracks configured offenders by default), with lag-aware tightening.