Different Minecraft Lag Types and Their Fixes

Common Reasons for Lag

• Too many players and not enough RAM
• Too many mobs/items and not enough RAM
• You are too far away from your server (latency)
• Corrupt chunks/entities
• Too many worlds running without sufficient RAM
• Errors spamming in your console
• Too many plugins running without enough RAM

Things to Do First

Always check for console errors before submitting a ticket. If you see any "SEVERE" errors, this may be the cause of your lag.

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TPS Lag (Server Lag)

TPS stands for Ticks Per Second — a maximum of 20. Each tick causes the game to recalculate mob directions, growing crops, and more. Low TPS means a slower, laggier server.

Fixes:

• Reduce view distance from 10 to 6–8
• Use ClearLag to check/remove excess entities: lagg check, lagg clear, lagg killmobs
• Remove unnecessary plugins
• Fix corrupted chunks
• Limit maximum entities

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FPS Lag (Client Lag)

Client lag is caused by your computer running the Minecraft game. It is affected by large amounts of entities, shaders, mods, etc.

Fixes:

• Install Optifine mod for higher FPS
• Remove unnecessary entities near spawn
• Fill cave voids below spawn with stone to reduce light calculations
• Use WorldGuard regions to block mob spawning at spawn

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Latency (Internet Lag)

Latency is usually a result of being geographically far from the server host. Electrical impulses take many milliseconds to reach the server.

Ping Guide:

• Fast: < 100ms
• Medium: 100–200ms
• Satisfactory: 200–300ms
• Slow: 300–500ms
• Laggy: > 500ms

Fix: Check your server's location and submit a ticket to request a free transfer to a closer node.