This modpack includes Fabulously Optimized (which adds tons of optimization), and other client-side mods that I like.

Modpack adds huge quality of life features to make it easier to play while keeping it client-side and vanilla friendly, such as being able to sort chests, using waypoints, item recipes and more.

Here is the full list of mods:

• Animatica - Adds support for Optifine animation format.

• Auth Me - Allows you to change accounts without leaving the game.

• Better Mount HUD - Improves the ingame HUD while riding a mount.

• Borderless Mining - Adds windowed option.

• CalcMod - ChatCalc offers more than just basic calculations. Adds commands for storage units and randomized number generator for many purposes.

• Capes - Shows capes from OptiFine, LabyMod and many more.

• ChatCalc - Calculator mod that runs in your chat. Simply write a calculation and press "tab" and it shows the result.

• Chest Tracker - Tracks chests that you opened in your world then allows you to search the items in multiple chests and dimensions.

• Client Commands - Adds more client-side commands.

• Continuity - Adds support for OptiFine connected textures.

• Controlify - Controller support.

• Debugify - Fixes some bugs.

• Distant Horizons - With this mod you are able to increase your render distance incredibly high without sending your fps to magma. Also supports some shaders with latest update.

• Dynamic FPS - Makes your game run at low fps when you are focused to another window on your pc, saving resources.

• e4mc - Open your LAN servers to everyone.

• EMI - Its similar to JEI or REI but I find the design of EMI and its recipe tree better.

• Enhanced Block Entities - Optimization.

• Entity Model Features & Entitiy Texture Features - More OptiFine support.

• EntityCulling - Optimization.

• Fabrishot - You can take high resolution screenshots with F9 key (by default).

• FerriteCore - Optimization.

• ImmediatelyFast - Optimization.

• Indium - Optimization.

• Inventory Profiles Next - Inventory management mod. Adds buttons for sorting storages.

• Iris - Adds support for shaders.

• Jade - Shows what you are looking at.

• Krypton - Optimization.

• Language Reload - Optimization.

• Litematica - This mod adds schematics for easier
  building. You can create your own shematics or download them from various websites.

• Lithium - Optimization.

• MiniHUD - Configurable F3 menu.

• Mod Menu

• Model Gap Fix - Fixes gaps in item and block models.

• ModernFix - Optimization.

• More Culling - Optimization.

• MoreChatHistory - Increases the length of the chat history from 100 to 16384.

• Mouse Wheelie - Adds usefull shortcuts for mouse.

• No Chat Reports - Privacy.

• Paginated Advancements - Better advancement
  screen.

• Puzzle - Optimization.

• Remove Reloading Screen - Makes resource packs load in the background.

• Sodium - Optimization.

• Sodium Extra - Extra optimization.

• Stack to Nearby Chests - Adds a feature for
  dumping your items to nearby chests. Like Terraria.

• Trade Uses - Shows how many times you can use a trade before restock.

• Tweakeroo - Adds bunch of client-side tweaks.

• ViaFabric - Makes you able to join old versions with
  your current version.

• Xaero's Map Mods - Minimap and World Map mod. (Also there is XaeroPlus which adds more features.)

• Xaero's Map Chest Tracker Integration - Shows the chest coordinates in the map.

• Zoomify - Zoom mod.