Vanilla Velocity

The project is made solely by me, only the description is AI and im planning to eliminate that in the next update

A performance modpack for Minecraft 26.1.2 built on strict vanilla parity. Every mod is purely client-side or non-tick-modifying — no Lithium, no game logic changes, no surprise behavior. Your farms work exactly like they do in vanilla.
What’s inside
Curated set of optimization mods that touch only rendering, memory, networking, and worldgen threading:

Sodium — rendering rewrite, massive FPS gains
FerriteCore — memory dedup, ~40% RAM reduction
ImmediatelyFast — GUI/HUD rendering optimization
ScalableLux — actively maintained lighting engine improvements
EntityCulling — skips rendering entities you can’t see (no logic changes — entities still tick, just aren’t drawn)
C2ME — chunk system and worldgen threading
ModernFix — startup time, memory, and bugfixes
BadOptimizations — micro-optimizations for particles, lightmaps, and more
Krypton — networking stack optimization
Debugify — Mojang-acknowledged bug fixes only
Mod Menu + YACL — for accessing mod configs in-game

What’s NOT inside, on purpose

❌ Lithium and other tick-modifying optimizers (known to subtly break farms — see recent raid farm breakage)
❌ Alternate Current and other redstone rewrites
❌ Anything that changes mob AI, entity ticking, redstone behavior, or block update order
❌ Carpet, content mods, or QoL mods that change gameplay

Who this is for
Technical Minecraft players, farm builders, and anyone who wants vanilla mechanics with serious performance gains. If you build mob farms, run raid farms, time piston contraptions, or care about TPS-accurate behavior, this pack is for you.
Requirements

Minecraft 26.1.2
Java 25 (Mojang’s launcher bundles this automatically)
6 GB RAM recommended (4 GB minimum)
JVM args: -Xmx6G -Xms2G — leave the rest at default; the included Java 25 with ZGC handles it

Notes

Debugify is configured to disable auto-enabling future bug fixes — new fixes after a Debugify update require manual review via Mod Menu before activating, preserving the farm-safe guarantee
Tested with iron farms, raid farms, and witch farms on 26.1.2 — vanilla rates confirmed