Extreme Optimization!

Vanilla Launcher version offers the same features for Vanilla Launcher, just unpack "mrpack" to "mods" (cannot automatically update like third-party launchers).

For Fabric - unpack "mrpack" to "mods", delete quiltgoslightlyfasterlol, qfapiqslfapi (Quilt Libraries), DimThreading and add FabricAPI.

* You can delete "modrinth.index.json", this is just to show mods in "Dependencies" and does not affect the installation of mods to Vanilla Launcher.

Highly recommend these mods, not added to the modpack, because they do not correspond to the concept of extreme optimization and "Base", but may be more useful than others QoL mods:

AntiGhost - Get rid of ghost blocks by requesting resends from the server.

CullLeaves - Culling leaf blocks, providing a huge performance boost over vanilla.

JEI - Item and recipe viewing mod for Minecraft, built from the ground up for stability and performance.

REI - JEI alternative.

* "Dependencies" shows only 90% of the mods in the modpack.