Dependencies (Required for the mods to run)

Cloth Config - Used by all mods.

FabricAPI - Used by all mods.

Indium - Used by most visual mods.

Fabric Language Kotlin - Used by Fabric Capes.

Performance & Bug Fixes

AdvancementsDebug - Makes the Advancements logic faster and fixes crashes caused by StackOverflowErrors.

BetterBeds - Removes rendering of beds as entities and replaces it with the default model renderer.

Blanket - All-in-one mod that fixes a lot of render issues, server-client desync issues, etc.

CullLeaves - Optimizes leaves by a lot. Optional texture pack to make the leaves look better. 

            This mod's effects are a lot more apparent in Jungle biomes, where are lots of leaves. 

If you're using the quality modpack, I highly suggest using this texture pack along with it.

DynamicFPS - Minecraft takes massive amounts of resources when running in the background.

            This mod makes renderer lock to 1FPS or none at all (configurable) when Minecraft isn't in focus.

This is especially great if you AFK with Minecraft.

EnhancedBlockEntities - Optimizes block models.

*EntityCollisionFPSFix - Heavily optimizes fps areas where there's a lot of mobs by skipping collision checks, since they're always calculated server-side. It is redundant and unecessary to do the same with the client.

EntityCulling - Prevents rendering of all the entities and tile entities that you don't see.

            Doesn't impact visuals, but massive performance increase especially on places with lots of entities like mobs, hoppers & chests, etc. 

FastChest - Same effect of BetterBeds, but with chests. Up to +33% peformance increase when surrounded by an abundance of chests.

FastOpenLinksAndFolders - Removes the lag or freezing caused by opening links in-game.

FerriteCore - Dramatically decreases ram usage. Effects are more apparent depending on load.

*ForgetMeChunk - Prevents light map unloads on the client, eliminating fps drops caused by crossing certain chunk borders.

Item Model Fix - Fixes the transparent lines you see between the borders of blocks and items.

Krypton - Improves network performance for Minecraft. Useful for people who have lower internet connections or want lower latency. 

Ksyxis - Speeds up world loading by skipping vanilla's unnecessary 441 chunk loading-unloading on every login. 

LazyDFU - Leads to faster boot times while reducing the lag spike that minecraft causes on boot. Doesn't reduce performance in-game.

            Comparison here: https://www.youtube.com/watch?v=gXDqJ598kKA.

Lithium - All-around optimization mod.

*Mipmaplevel and Language Fix - Heavily decreases lag spikes caused when switching languages or changing mipmap levels in settings, by only reloading specific parts required for the changes instead of all game resources.

NotEnoughCrashes - Better handling of crashes.

Sodium - The most important mod in this list. Massively increases FPS.

SmoothBoot - Prevents Minecraft from using all cores thus freezing low-end pcs when booting up.

^ READ: If you're experiencing slower loading with the modpack compared to vanilla, change this mod's settings by going to your config folder -> smoothboot.json, and then setting "bootstrap" from 1, to how many threads your system has minus one or two.

Starlight - Second most important. This makes the lighting engine for minecraft up to 3500% faster than vanilla.

ToolTipFix - Fixes tooltips that extend farther than the screen.

TieFix - Fixes a lot of UI bugs, such as not being able to pause when in nether portals, etc. 

IRIS [Q] - A shaders mod that supports sodium. Currently is in its alpha stages for 1.18.

        Note that Optifine shaders will not always work for this. A list of usable shaders are available here.

Extras (Settings, Customization, Features, & Cosmetics)

Animatica - Adds support for animated textures.

AppleSkin - Shows how much hunger and health food will refill when holding it.

Beenfo - Shows information about a bee nest in advanced tooltips.
Bobby [Q] - Allows render distances higher than what the server's set to.
CIT Resewn - Adds CIT (Custom Item Textures) support back to the game.

Custom Entity Models - Adds support for texture packs with custom entity models.

Colormatic - Adds support for custom colors in texture packs.
Continuity - Adds connected textures to the game.

CraftPresence - Adds better & customizable Discord intergration to minecraft.

Don't Clear Chat History -  Makes it so that it won't clear the messages you've sent in up arrow on disconnect/relog.
Entity Texture Features - Adds support for custom,  emissive, and random textures for entities.
Fabric Capes - Adds and shows capes from Optifine, LabyMod, and MinecraftCapes.

FabriShot - Adds support for higher resolution screenshots.

LambDynamicLights - Adds dynamic lights back to the game.
LogicalZoom - Adds zoom via a hotkey.

ModMenu - Allows for easier configuration of mods.
No Telemetry - Prevents Microsoft from using your data and protects your privacy, as the system isn't compliant with GDPR standards.

Reese's Sodium Options - Accompaniment mod and soft-depency for SodiumExtras.

SodiumExtras - Adds more options for performance in video settings.