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Modrinth · Minecraft modpack

Heavily Optimized

The best optimization modpack for version 26.2 and later. This modpack aims to improve preformance and increase fps while also allowing higher render distances. Up to 60% better performance.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Heavily Optimized release should I use?

Updated 5 days ago
Latest stable file Heavily Optimized 2.0
Game version 26.3
Loader Fabric 0.20.1

Heavily Optimized 2.0 is a complete pack release for 26.3 with Fabric 0.20.1. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 86 mods in this pack file.

Pack setup

How should I set up Heavily Optimized for players and a server?

Use Heavily Optimized 2.0 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install Heavily Optimized 2.0
Dedicated server setup Match Heavily Optimized 2.0
Pack loader Fabric 0.20.1

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

Referenced mods 86
Client only 37
Server only 16
Not labelled 33

These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.

What are the server requirements for Heavily Optimized?

Heavily Optimized 2.0. Change the pack release and its contents or setup may change too.

86 mods in this pack file

The selected pack release is Heavily Optimized 2.0. That file is for Minecraft 26.3 with Fabric 0.20.1. It contains 86 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is Heavily Optimized?

What is Heavily Optimised?

Heavily Optimised is the definitive performance-boosting modpack designed for version 26.2 and beyond. Whether you are trying to squeeze every last frame out of an older laptop or pushing ultra-high render distances on a high-end rig, this pack is built to deliver the smoothest gameplay possible.

Why Choose This Modpack?

Vanilla Minecraft can be incredibly demanding, often plagued by micro-stutters, slow chunk generation, and sudden FPS drops. This modpack completely overhauls how the game runs:

Massive FPS Boosts: On average, players see an immediate frame rate increase of up to 40%.
Low-End System Revival: Lower-end systems see even more dramatic results, reaching up to 60% in extra performance.
Extended Render Distances: Breathe new life into your game, finally allowing you to turn up your render distance and graphics settings without ruining your frame rate.

What It Adds to the Game

Instead of adding heavy content mods that alter core gameplay, Heavily Optimised works entirely under the hood. It introduces a carefully selected suite of optimization engines that rewrite how the game handles rendering, lighting, and memory allocation:

Modern Render Pipelines: Replaces legacy rendering code with highly efficient algorithms, significantly driving up your base frame rate.
Rapid Chunk Generation: Drastically reduces world-loading times and eliminates the annoying lag spikes that happen while flying or exploring.
Memory & CPU Optimization: Cleans up memory leaks and reduces overall CPU overhead, ensuring your game stays stable and smooth even during long sessions.
Granular Video Settings: Unlocks deeper, more precise control over your graphical settings so you can fine-tune performance to match your exact setup.

Experience your worlds the way they were meant to be played—completely stutter-free.

Project description from Modrinth.

Mods in Heavily Optimized 2.0

Open any mod on Modpacks.ch to check its files and dependencies.

advanced_fps_limiter-1.0.0.jar SHA-1 34c870ae5443a4038a7f2969e9bbe103d332f3ca · Modrinth version dGZjRNTn · Project link unavailable Client only
almanac-fabric-26.3-1.26.11.1.jar SHA-1 cc47bd0e0dd428952aefe730c3ef0f0ee6019d39 · Modrinth version mSuvUaBg · Project link unavailable Server only
alternate-current-mc26.3-1.9.0.jar SHA-1 1316efc4195fbf152f8521542bc2435bd588ddb6 · Modrinth version nSBWPz6x · Project link unavailable Server only
appleskin-fabric-mc26.3-3.0.10.jar SHA-1 3d19e40c5f97186857db98e622c01c2cd0030497 · Modrinth version PHjDtQay · Project link unavailable Side not labelled
architectury-fabric-22.0.5.jar SHA-1 8c5f566e32bd47fbb80be4932b9be1cfa97c4e3a · Modrinth version 1pMaB6So · Project link unavailable Side not labelled
asynclogger-2.2.3+26.1.2-fabric.jar SHA-1 d578e9e067c8f598bb5eee60b8a1d575edbbcfdf · Modrinth version 3Klv7aWV · Project link unavailable Client only
BadOptimizations-2.4.1-26.3-fabric.jar SHA-1 4cc25ce6217326ff14169f5358921773297e9475 · Modrinth version Sp0ctspw · Project link unavailable Client only
balm-fabric-26.3-26.3.0.3.jar SHA-1 1b44d97048c1c2e9cc7e0a03c00f5cb117463a60 · Modrinth version MYj31XNG · Project link unavailable Side not labelled
bbe-fabric-1.4.0+mc26.3-mod.jar SHA-1 ef6cb9b2a7c2074e35a5994953f773e043070df3 · Modrinth version FU2tstk7 · Project link unavailable Client only
blocky-bubbles-4.1.0+26.3.jar SHA-1 3c4d0bf4dca9a79ab135e47bc3e801b37ed4050c · Modrinth version VyAII2HG · Project link unavailable Client only
bobby-5.2.16+mc26.3.jar SHA-1 0f4243dcc8298a109b5af511f959660b1a1a97db · Modrinth version J7YnfCss · Project link unavailable Client only
c2me-fabric-mc26.3-0.4.2-alpha.0.115.jar SHA-1 6063395f49ad5763e60226a0e97de63e334c6d9d · Modrinth version Vhj7rn6M · Project link unavailable Side not labelled
c2me-fabric-opts-accel-opencl-mc26.2-0.4.2-alpha.0.6.jar SHA-1 b5a1652811d5185becad8bb6605ae923b5a12930 · Modrinth version DT3rv7ra · Project link unavailable Server only
cloth-config-fabric-26.3.159.jar SHA-1 9a5cce069380a2047250831dcb19f4ef1b15872d · Modrinth version fg2uyxOW · Project link unavailable Side not labelled
Clumps-fabric-26.3-26.3.2.jar SHA-1 86d6618f772320bb5e66b4696396a450d5cb845e · Modrinth version J4I1wxJZ · Project link unavailable Side not labelled
CollisionFix-2.0.0+26.1+fabric.jar SHA-1 719444b63744c76f707dca0e22e4b7d87eabb718 · Modrinth version tIz2QbNK · Project link unavailable Client only
Controlling-fabric-26.3-26.3.4.jar SHA-1 c08b9b1ab6e5850c869ae4c22aa8205d164f7304 · Modrinth version V6AbRm67 · Project link unavailable Client only
craft_config-1.1.13+26.3-fabric.jar SHA-1 37c992aa4c405c0cd242c86c09b47b3148cf45d9 · Modrinth version uZrFIHcm · Project link unavailable Client only
crashexploitfixer-fabric-2.0.0+26.3.jar SHA-1 5d874aa578442e9cfc77838628a44d1b4dd299f5 · Modrinth version rTvl7ojW · Project link unavailable Server only
debugify-26.3.0.0.jar SHA-1 62876ccaaaaad48c04499e4cf211433dc6c6e53b · Modrinth version FMaS2nZn · Project link unavailable Side not labelled
disablefog-fabric-26.3-2.2.1.jar SHA-1 34eae804d5107ae5d603dbf4a218adc1696abb15 · Modrinth version eGXBoiR4 · Project link unavailable Client only
DistantHorizons-3.3.4-26.3-fabric-neoforge.jar SHA-1 310c0363068dfae18e91f799ed671a591b6ad49a · Modrinth version TGgEbP9A · Project link unavailable Side not labelled
dynamic-fps-3.11.10+minecraft-26.3.0-fabric.jar SHA-1 a4860c9480f0ce1a468e1e4c254214b1f97e19b3 · Modrinth version Jwq069rR · Project link unavailable Client only
Entity Render Stacking 1.2 - 26.3.jar SHA-1 55d5c9b1950eac140a7edfb51041bbbbf357ee85 · Modrinth version Q1gZAhLO · Project link unavailable Side not labelled
entity-view-distance-1.9.0+26.2.jar SHA-1 09ee9afdd2061b2c466ecb88390fc902e2df5645 · Modrinth version sgCd8b9b · Project link unavailable Side not labelled
entityculling-fabric-1.11.3-mc26.3.jar SHA-1 45f47f7a067f5efd733a32767dc3d1d770678b2a · Modrinth version X1g3VhTx · Project link unavailable Client only
ExploitPreventer-1.2.1+26.3.jar SHA-1 3cc9cad601c472654db9d0dcf36fc7137b9c91f7 · Modrinth version ZTdIjmYY · Project link unavailable Client only
fabric-api-0.165.2+26.3.jar SHA-1 2e364989e3f6efb97e1dbd12d80d835c7ab8c26c · Modrinth version nJlcvFfj · Project link unavailable Side not labelled
fabric-language-kotlin-1.14.2+kotlin.2.4.21.jar SHA-1 f1d4ab6ecd54d9782521333a87eb50724ecb03e0 · Modrinth version SKW1BTL3 · Project link unavailable Side not labelled
farblockentityrendering-2.1+26.3.jar SHA-1 d663e8a43c13a01eb1887a684d208a8558f7b790 · Modrinth version K5mDyXkW · Project link unavailable Client only
fast-ip-ping-v1.0.12-mc26.3.jar SHA-1 7db094c0a3f4c0d272d41c800838c57fe6bb823e · Modrinth version N6hOHbOO · Project link unavailable Client only
ferritecore-9.0.0-fabric.jar SHA-1 eac76ff0f3753422c61b2c44487d0d195d88d4bc · Modrinth version d5ddUdiB · Project link unavailable Side not labelled
footprint-1.0.2-beta+26.3.jar SHA-1 cc0b2b0717870f3e3b2b2bb1407ff1338bada042 · Modrinth version dkQnlcz3 · Project link unavailable Server only
ImmediatelyFast-Fabric-1.17.1+26.3.jar SHA-1 f565bbeb201f2305e81761429d3f1f47e1c3a321 · Modrinth version 3MP9UR23 · Project link unavailable Client only
Jade-mc26.3-Fabric-26.3.5.jar SHA-1 da61413c586c8918c14e2bbfdc808ce2d56ea9df · Modrinth version 71CTWqdE · Project link unavailable Side not labelled
keybindbugfixes-1.6.0+26.3.jar SHA-1 500d3ceaa93056a8e8d6566e2b48394904c56c8a · Modrinth version 85J5HRVw · Project link unavailable Client only
krypton-0.3.2.jar SHA-1 21b21cb88e412f0bce73b6609de6dd6aca958d7d · Modrinth version UugdIYJw · Project link unavailable Side not labelled
lambdynamiclights-4.13.0+26.3.jar SHA-1 18c8ab40f03219bfcf809a83db6e3958ed8bb866 · Modrinth version rylKnJ4M · Project link unavailable Client only
language-reload-1.7.8+26.3.jar SHA-1 e6fd2df83d1d3d0f352a7e45eaf76f4551c136f2 · Modrinth version QVn4cccd · Project link unavailable Client only
lazy-ai-1.7.2.jar SHA-1 85bd47e47a0e0fc0259014c7316cbceeb4f01099 · Modrinth version 1cPf8ULW · Project link unavailable Server only
letmedespawn-fabric-26.3-1.26.11.1.jar SHA-1 d6ca307b58f5f51efa82c675d71fd5f90e310287 · Modrinth version a3ISt6Ob · Project link unavailable Server only
lithium-fabric-0.26.3+mc26.3.jar SHA-1 2d3afe9d43bb2549e23479d8d93e644ff366bebf · Modrinth version fWv5bnZk · Project link unavailable Side not labelled
mercurizer-fabric-0.9.2+mc26.3-1.2.jar SHA-1 31e3f3339625d2d49255ae3793b9619d0a2f8151 · Modrinth version rB7uH1Dy · Project link unavailable Client only
mobcollisionoff-3.0.jar SHA-1 1ddba82f178980d93616aed14e6a468bc9c35f91 · Modrinth version zL9tyIq1 · Project link unavailable Side not labelled
modernfix-5.27.20-build.2.jar SHA-1 b63337e801fbf2cb420a049d69220c56e083f514 · Modrinth version pa9cAfYg · Project link unavailable Side not labelled
modmenu-21.0.0.jar SHA-1 66ec40f1cd0c037ddca2b5fc6b4b976d479c18e8 · Modrinth version kyy7dbrZ · Project link unavailable Client only
moreculling-fabric-26.3-1.9.1.jar SHA-1 2c768b910eb1cb3fcb880bcacc7dbf9c0678ce06 · Modrinth version 5jIORlSK · Project link unavailable Client only
MossyLib-1.6.0+26.3+fabric.jar SHA-1 48facdb59d1a9b924c88123885671bc7d64388ba · Modrinth version yMuPxSiE · Project link unavailable Client only
netherportalfix-fabric-26.3-26.3.0.1.jar SHA-1 931aa21198cdff436adecc90cbf73de8f16b0d67 · Modrinth version RC1fmH8z · Project link unavailable Server only
no-collision-0.1.jar SHA-1 cb74ca15e8ceadfae74140750ffce5e30a6adc3d · Modrinth version XNBjBJXm · Project link unavailable Side not labelled
NoChatReports-FABRIC-26.3-v2.21.0.jar SHA-1 ed49e6780f20fcad080a211f8163c9d130ebdd34 · Modrinth version 6g96avt2 · Project link unavailable Side not labelled
noisium-fabric-2.8.5+mc26.2-pre-2.jar SHA-1 c90f03eedd49b1906bf74e0412fc23500936c00b · Modrinth version rWMnuBfv · Project link unavailable Server only
notlag-mc26.3-3.3.0.jar SHA-1 269e89fd4d001281054282640fbd2d3eb763f73f · Modrinth version ERSzUll7 · Project link unavailable Client only
obe+26.3-1.2.1.jar SHA-1 d9b80cd5ee3756e7e776ed4b71e162b94d64a5c1 · Modrinth version CCh1GsUc · Project link unavailable Client only
optimized_fullbright-2.0.1+26.2-fabric.jar SHA-1 156f8c233eea6d26187cdc94fa5392ecc27705e6 · Modrinth version h5ngoHK7 · Project link unavailable Client only
PacketFixer-fabric-3.3.6.jar SHA-1 a71fcdee677e23583da12b9237ab165ae7a0c8b0 · Modrinth version dTKbGYbb · Project link unavailable Side not labelled
placeholder-api-3.2.0+26.3.jar SHA-1 4c455faa6333dbaef72cedbb91fe4a2a03176741 · Modrinth version lXytLqWj · Project link unavailable Side not labelled
playerhider-26.3-1.0.0.jar SHA-1 aebcc8bf57c9bdeb539a0e707bcc332a066510c2 · Modrinth version xlmGr7pA · Project link unavailable Client only
Potatoptimize-2.2.2.jar SHA-1 2a46c4b1de9b938e93f3791051a02271fdd4953e · Modrinth version TTLkgTGW · Project link unavailable Server only
railoptimization-2.0+mc26.1.2-fabric.jar SHA-1 545a3a92a0191c176ce3fd44230a7e53402fd351 · Modrinth version QQzYehRo · Project link unavailable Server only
reeses-sodium-options-fabric-2.2.5+mc26.3.jar SHA-1 305aa813172358eb5e95d0a7af02a44326261226 · Modrinth version EfchygKx · Project link unavailable Client only
resourcepackchecker-fabric-1.2.2+26.3.jar SHA-1 ce97f5fe908011cbb2d0a9bec59288e7e50b2cea · Modrinth version MIlOIpGV · Project link unavailable Client only
ScalableLux-fabric-mc26.3-0.3.0-alpha.0.6-all.jar SHA-1 d51dcbe901452a1cb378139ca351009254e7ab0d · Modrinth version g4eqNSKd · Project link unavailable Side not labelled
Searchables-fabric-26.3-1.0.3.jar SHA-1 2712ba020dd0d373fb39c399c89497340e290117 · Modrinth version wV79bLRS · Project link unavailable Client only
ServerAddressSpaceFix-0.2.5 mc26.x.jar SHA-1 5e698a2c09fae7bbf4fc6c0ecb1b304c5f764c61 · Modrinth version nvzPrP4Z · Project link unavailable Client only
servercore-fabric-1.5.20+26.3.jar SHA-1 ec5fdf4798e29e483fa861dead101b0d9d6d72cb · Modrinth version LCG1Bm84 · Project link unavailable Server only
serverlistfix-1.0.2.jar SHA-1 6a2fb3e9ed0dbe3ac7028b27571fda9daf9b6cf2 · Modrinth version o4JhJHSO · Project link unavailable Client only
serverpingerfixer+26.1-1.1.1.jar SHA-1 38caf552fa0b3cbde8e9becbcb39cf147fee4844 · Modrinth version S5jb0bIg · Project link unavailable Client only
shulkerboxtooltip-fabric-5.4.3+26.3.jar SHA-1 e81054001c0899e5c0689418f4272977fe6b0bf6 · Modrinth version 60krd8u8 · Project link unavailable Side not labelled
Slumber-2.0.0.jar SHA-1 a7715948850f61b0509877773fcc8641363ca017 · Modrinth version 8VNqZydR · Project link unavailable Server only
sodium-extra-fabric-0.9.5+mc26.3.jar SHA-1 f0201a1b67f3405de7152fec484228db45dcbece · Modrinth version fs5l9Q1U · Project link unavailable Client only
sodium-fabric-0.9.2+mc26.3.jar SHA-1 9acfe851e36f4fb27d7c5baa224e8bd4e0334283 · Modrinth version bAZQdGpg · Project link unavailable Client only
sound-physics-remastered-fabric-1.5.2+26.3.jar SHA-1 71bd05396d44481fd48171c6d24e047285a93781 · Modrinth version gA7nKz5g · Project link unavailable Side not labelled
spark-1.10.187-fabric.jar SHA-1 0940b4089affdfca37d6b6d0ea5ecae4dbd8fe98 · Modrinth version e3hsPc1o · Project link unavailable Side not labelled
tme-0.2.jar SHA-1 2c722d0cf68c479d9617a4e1e1377b5e5b9964df · Modrinth version tU0tqN14 · Project link unavailable Side not labelled
Too Many Entities 26.2 Fabric v1.2.3.jar SHA-1 bd6069cfae3e037c7905a2d15426f49e32cef963 · Modrinth version 4oCHJVAy · Project link unavailable Client only
tt20-0.8.5+mc26.3-fabric.jar SHA-1 8c6f9b3f3d0887ebd81a0c13a83bfc0d624527a2 · Modrinth version 4v41bQe4 · Project link unavailable Server only
uuid-hex-1.4.jar SHA-1 ff260224dac265d59d911ddc3a741fa65a131e08 · Modrinth version ijIiXmos · Project link unavailable Side not labelled
vmp-fabric-mc26.3-0.2.0+beta.7.238-all.jar SHA-1 ef7581bcd175eda07e2ebff0ddfd3094aa36026b · Modrinth version 2TFDVjDf · Project link unavailable Side not labelled
voicechat-fabric-2.6.27+26.3.jar SHA-1 23442735927fe3839650196c0656eb82b0322d87 · Modrinth version x9jLR94Q · Project link unavailable Side not labelled
Worldthreader-3.2.0.jar SHA-1 75350c22d092fb9f4f1ea2eb3cc7b107745ba835 · Modrinth version hqEvFrrM · Project link unavailable Server only
xlpackets-1.0.6.jar SHA-1 34e7ee1a82c575ed676a24993dd7dfa2628c03b5 · Modrinth version DCI8egH7 · Project link unavailable Side not labelled
yet_another_config_lib_v3-3.9.7+26.3-fabric.jar SHA-1 e54d86dd4a78f95cd6ec0309d96fae01e661c00d · Modrinth version s9SjoFu1 · Project link unavailable Side not labelled
zconfig-1.0.0+26.x.jar SHA-1 91dab4f25559cf79d493177fbe0a50c4083a27cb · Modrinth version tsgt79sG · Project link unavailable Side not labelled
zfastnoise-1.1.2+26.3.jar SHA-1 e8a325192fbe976e04795f45d7062f1241648a5e · Modrinth version 71NgK90F · Project link unavailable Server only
zoomify-2.17.0+mc26.3-universal.jar SHA-1 7f18090fea4a2ddae01e032d09629d14fa381d3f · Modrinth version RUBpNu00 · Project link unavailable Client only

Pick your setup

Heavily Optimized by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

2 available setups

Made local changes? Try them in a copied instance before touching a world you care about.

Recent files

Heavily Optimized versions and loaders

2 of 2 releases match

Looking for an older file? The official Modrinth project page is in Resources.