Basically, Im proposing that in inventorys we get boxes/folders of sorts where we can put items inside them and open those boxes to get a more clear view of the items, while Yes I know that filters exist, in theory this update would make it much easier to find specific items without going through the hassle of filters, filters would still have their uses though obviously, anyways more on the boxes/folders it would be like a section in your inventory where you can edit a box and move it around in your inventory, (Preferably the top) and you can add affects to it and even have a item as the item being displayed so lets say I wanted a box for Sunkens i would have a sunken sword as the thumbnail of it and different bluelike effects surrounding it, id click it and see all my sunken items + a feature to set it so specific items (there would be a checklist) go into a box so we can have things like fishing boxes where you can have common fish go in one box and etc. basically im just asking for better inventory organization so we dont get massive lagspikes and its easy to find specific items without using filters. thank for readin
TLDR: QOL Inventory Boxes for sorting. no more pesky lagspikes when opening 300 item inventory.
Some pictures for reference on what it would look like per folder/box 
It would roughly be the same size as this. 
