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WhatsMyLag

Mod

Find out exactly what’s lagging your world - with mod, entity, and tick info.

Type

Mod

Modrinth Downloads

1,598

Modrinth ID

h1nXxIen

Last Updated

Jul 27, 2026

Description

🌀 Lag Detector — Find What’s Slowing You Down

See exactly which mods, entities, or blocks cause lag — on both client and server! A lightweight and powerful tool to track performance issues directly in-game.

💻 Client-Side Lag Analysis

Command: /whatsmylag

  • Shows FPS, entity count, and top 10 nearby lag sources
  • Displays mod name, entity type, distance, and lag impact (%)
  • Ideal for spotting laggy builds, farms, or particles

🧠 Note: If the mod is only installed on the client, only this command will be available.

Client Lag Example

🌐 Server-Side Lag Analysis

Command: /whatsthisserverlag

  • Shows server tick usage for the top 10 entities or blocks
  • Displays coordinates, mod name, and performance percentage
  • Perfect for diagnosing lag farms or overloaded chunks

🧠 Note: If the mod is only installed on the server, only this command will be available.

Server Lag Example

📊 Features

  • ✅ Detects lag sources from any mod (Create, Minecraft, etc.)
  • ✅ Clear, color-coded in-chat display
  • ✅ Works in singleplayer and multiplayer
  • Client and server commands work independently
  • ✅ No setup — just install and type the command

🧩 Compatibility

  • Supports Fabric / Quilt 1.20+
  • Works alongside optimization mods like Sodium, Lithium, and FerriteCore

🧠 Perfect For

  • Players who want smooth gameplay
  • Server admins hunting lag farms
  • Modpack developers testing performance

Compatibility

Mod Loaders

Fabric Quilt

Game Versions

1.20 1.20.1 1.20.2 1.20.3 1.20.4 1.20.5 1.20.6

Recommended Gear

Affiliate

Hardware and extras that pair well with this mod.

As an Amazon Associate I earn from qualifying purchases.

Screenshots

Similar Mods

Included in Modpacks (2)

External Resources