This is Forge port of Smooth Swapping
If you want see fabric and original see the this link!
Smooth Swapping (Fabric) - Mods - Minecraft - CurseForge
Summary(From Original):
This mod moves items in inventories smoothly instead of letting them appear instantly.
When shift-clicking or using the hotbar key-binds to move items in an inventory they will travel from their old inventory slot to the new one.
Be aware that this mod is really choppy when you have less than 30 FPS.
Credit:
Schauweg : Original Author
