FastValus

Server-side anti-lag utility featuring death-drop-safe item sweeps, wall-safe item & XP clumping, per-chunk entity limiting, and Entity + TileEntity lag diagnostics.
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[Forge 1.20.1] FastValus 5.1.1 - FULL (Video GUI, 56-Rule Compat, Culling, Crash-Shield) | LITE on 1.20.2-1.20.4

File namefastvalus-forge-1.20.1-5.1.1.jar
Uploader
arios_gameoverarios_gameover
Uploaded
Nov 15, 2026
Downloads
4
Size
507.9 KB
Mod Loaders
Forge
File ID
9631442
Type
R
Release
Supported game versions
  • 1.20.4
  • 1.20.3
  • 1.20.2
  • 1.20.1
  • 1.20
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Curse Maven Snippet

Forge

implementation fg.deobf("curse.maven:fastvalus-1765592:9631442")

Learn more about Curse Maven

What's new

FastValus 5.1.1 - FULL build (Forge 1.20.1) - tested in-game on both Forge 1.20.1 client & server.

Hotfix 5.1.1 (Crash-Shield):

  • SafeGuard session circuit-breaker isolates every client & server hook so unexpected mod interactions never crash Minecraft.
  • Deferred FMLClientSetupEvent + ForgeConfigSpec.isLoaded() guards prevent early splash-screen config race crashes in large modpacks.
  • Pure-vanilla + zero-Mixin-duck-interface renderer check + auto-yield prevents ClassCastException with Create, Flywheel, Oculus, Iris, ImmediatelyFast, EMF/ETF, Supplementaries, Amendments, Lootr & Immersive Portals.
  • Safe Extended Horizon ceiling prevents OpenGL VBO driver crashes and signed-byte (-128) multiplayer packet disconnects.
  • Zero blocks, zero items, and zero commands added by default (100% safe on any server!).

New in 5.1:

  • In-Game Video Settings & Options GUI (Options / Video Settings -> FastValus..., compatible with Vanilla, Sodium & Embeddium; English & Arabic).
  • 56-Rule Mod Conflict Detector + automatic self-yielding + bilingual report in logs/fastvalus-compatibility.txt.

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