This modpack includes: Tweakaroo, MiniHUD, Jumploader*, Litematica, ItemScroller, Optifabric, and Fabric API
These mods included do a lot of things, such as: Increasing block reach distance, Faster holding clicks, easier GUI controls, and much more.
Disclaimer: Do NOT use Tweakaroo block-reach override, Fast Left/Right click on servers it WILL get you banned (probably). Do not use Litematica schematics on build battle servers either.
*The use of jumploader is so you can use the modpack on Curseforge launcher or on the normal one without removing forge
Download and install Optifine seperately and put it in the mods folder. You can find it by opening the folder, clicking overrides, then mods, simply just paste the .jar into the folder and boom, you have optifine

