PerformanceX

fixed the TNT chain-reaction detector scanning the entire chunk entity list on every explosion event. in a chain reaction it was firing dozens of times per tick and rescanning every time — replaced with a simple counter increment, the per-chunk atomicinteger already resets every 60s so it naturally counts explosions in the window

removed thread-unsafe Bukkit.getPlayer() call from the chat throttler's async cleanup task. the playerquitevent handler already removes per-player state on disconnect so the check was both redundant and unsafe

removed the entire command throttler cleanup task for the same reason — it was calling Bukkit.getPlayer() from an async thread to prune the lastUsed map, but playerquitevent already handles that. task was redundant and unsafe, just deleted it