First of all, back up you game files in any way you like

i recommend to use this tool: https://www.nexusmods.com/darksouls3/mods/28 ,its easier to use, and iGP11 can make the texture even more "potato" , after select the correct exe file path,game name, click "connect" button, then go to "texture"--"detail level", and also dont forget to deselect the 3 "effect"--"HDR", "Luma sharpening", "Bokeh depth of field", i think there also will be youtube videos or something else to show you how to use iGP11

and also this : https://github.com/Codeusa/Borderless-Gaming/releases/tag/9.5.6 , if your PC is 16:9 like 1920x1080 ,use 4:3 resolution like 800x600 with fullscreen mode, there will be "black boders", Borderless-Gaming can fix this

YES! IN DEED! the iGP11 can be used on sekiro, just need to choose the sekiro.exe as DSIII.exe

=== What does this mod do? ===

I compressed the "textures" of this game, so that you can run this game on a potato

the textures i compressed are all from "map" folder and "parts" folder, these two folders contain game files like textures for armors, weapons, skins of creatures and maps ( like grasses, Walls and floors ) , so you dont need to warry if you "HUD" will be compressed

the textures  in the "part" folder ( the textures of your weapons, armors, skins of creatures ) and with a height greater than 256 are all compressed to 256 (like 256*256, 1024*256, XXX*256)

the textures in the "map" folder ( the textures of grasses, Walls and floors ) compressed to 64

i didnt compressed "models", "animations" or something else that are more complicated than "textures" because i dont know how to do it

=== How to inatall? ===

first you need this tool: UXM https://www.nexusmods.com/sekiro/mods/26

! ! ! and dont forget to back up you game files in any way you like ! ! ! 

1. download and unpack/unzip mod files

2. use UXM to unpack Data files of the game

3. copy mod files into game folder and overwrite all same name files

4. use UXM to patch the .exe file

and enjoy!

=== Bugs / compatible ===

I dont know if there will be bugs cause Im just a "beginner" of making mods, and if there is, I also dont know how to fix it

incompatible with any mods changes the same game files, so install this mod before you install other mods

=== Other things ===

Dark Souls 3 version: https://www.nexusmods.com/darksouls3/mods/524/

=== Credits and Thanks ===

feel free to use this mod do anything legal 

Thanks to the game production company

Thanks to this amazing tool https://www.nexusmods.com/sekiro/mods/26

And thanks to this "ModTutorial"
 https://github.com/asasasasasbc/SekiroModTutorial