### ❌ Plugins to Avoid or Replace

These plugins often duplicate server-side optimizations already handled by Paper/Purpur or they introduce new performance issues.

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#### ClearLag / NoMobLag / ServerBooster / AntiLag
Plugins that claim to magically reduce lag usually **cause more lag** by forcing large cleanup ticks and interrupting natural game logic.  
**Recommendation:** Remove them.

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#### LagAssist
Useful **only** for analytics and prevention insights.  
Disable all “performance optimization” and “lag removal” modules.  
**Recommendation:** Keep minimal or remove.

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#### BookLimiter
Paper already patches book-related crash exploits.  
**Recommendation:** Remove.

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#### LimitPillagers / VillagerOptimiser
Obsolete for **Minecraft 1.15+** due to internal AI and spawn behavior improvements.  
**Recommendation:** Remove.

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#### All Mob Stacking Plugins  
(StackMob, Stacker, MobStacker, WildStacker)
Mob stacking increases CPU load, reduces AI batching, and introduces dupe bugs.  
**Recommendation:** Remove.

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#### FastAsyncWorldEdit (FAWE)
Can corrupt chunks and break block updates in complex edits.  
**Recommendation:** Replace with **WorldEdit**.

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#### IllegalStack / ExploitFixer
Paper already patches most duplication and crash exploits.  
**Recommendation:** Remove.

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#### EntityTrackerFixer
Paper includes modern tracking optimizations natively.  
**Recommendation:** Remove.

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#### Orebfuscator
Paper already offers **anti-Xray** systems.  
**Recommendation:** Remove.

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#### GroupManager / PermissionsEx / bPermissions
Heavily outdated permission systems.  
**Recommendation:** Replace with **LuckPerms**.

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### PhantomSMP
Phantom behavior control exists in Paper:  
`phantoms-only-attack-insomniacs = true`  
Regardless of the current setting — plugin is unnecessary.  
**Recommendation:** Remove.

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#### PacketLimiter
Duplicate of Paper network protection systems.  
**Recommendation:** Remove.