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☀️ Tested on Steam Deck OLED:

✴️  recommended Proton Version: 
           GE-PROTON10-21

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✅ Required Tools

---  first you will need the following  applications :-

🔴 lossless scalling available  on steam store  ( paid ):-

https://store.steampowered.com/app/993090/Lossless_Scaling

🔴 decky loader installtion tutorial :-

https://youtu.be/kNGJ13VSRLk?si=vCJd3P03K66fivEi 

🔴  Decky loader download link (github) : 

https://github.com/SteamDeckHomebrew/decky-loader

🔴 Lossless Scalling  plugin  Tutorial :- 

https://youtu.be/0KCXxhD-Y8s?si=MVz0ffZGUczlCPRX 


🔴 lossless scalling plugin download link (github)   :-

https://github.com/xXJSONDeruloXx/decky-lossless-scaling-vk 

 🔴  Decky-Framegen plugin tutorial : 

https://youtu.be/sLFr3hRvnUQ?si=TJRvwSL-e7UXhNme 

🔴  Decky framegen plugin download link (github ) :

https://github.com/xXJSONDeruloXx/Decky-Framegen   



⚫️  Game launch command :

       ~/fgmod/fgmod ~/lsfg %command%   


⚫️  game proprties /general / game resoultion ( 1280X720 )  
 

⚫️  Set resolution for internal and external display (on) 


🟢  Lossless scaling (Decky LSFG-VK)  plugin settings :   


🔘  FPS MULTIPLIER (3X ) 


🔘  Flow scale (25%) 


🔘  Present mode (FIFO-VSYNC )  ( OFF )   


🔘  Performance mode (on) 


🔘  HDR mode ( off)



🟢  Decky framegen (OptiScaler menu) :


✨ Upscaler : FSR 4.0.2


✨ Model :  0


✨  Latencyflex mode ( conservative )


✨  Force flex ( follow in game) 


✨  Sharpness override (on)  


✨  Sharpness value ( 1000)



🔴  Steam Deck Quick Access Menu Settings:

 ✨     Screen Frame Limit: 90 Hz


✨     Disable Frame Limit: On


✨       Allow Tearing: Off


✨       Half-rate Shading: Off


✨       TDP Limit: Disabled


✨      Manual GPU Clock off


✨       Scaling Mode: auto


✨       Scaling Filter: liner  



🟣  DISPLAY SETTINGS :    


✨  window mode  ( windowed   )


✨ vsync ( off)


✨  Max framerate   (180 )


✨  Screen resolution   (1280X720 )


✨  NvidiaDLSS Resoultion    ( Ultra quality )


✨  NvidiaDLSS framegen (No )


✨  Nvidia reflex low latency   (on )


✨ Number of rats (low)


✨ Rats refresh rate (low)


✨ NPC refresh rate (low)



🟣 GRAPHICS SETTINGS :




✨ Draw distance (low)



✨ Shadow maps (low)



✨ Contact shadows (none)


✨ Volumetric light (low)


✨ light shafts (low)


✨ Ambiant occlusion (none)


✨ screen space reflection (none)


✨ Motion blur (none)


✨ Depth of field (low)


✨ Texture Quality ( low)


✨ Retryaced shadows ( off)


🟡  MOD TO BOOST PERFORMANCE : 

download the (enginesettings ) file   


https://drive.google.com/file/d/1VWw8cp-Yq6nL0GuNtymCD_qF3eDCboVs/view?usp=drivesdk

🧩 How to Install  : 
 

  Copy that file 

switch to

SteamOS desktop mode →   File manger  → HOME ( make sure show hidden folders option is turned on ) then go → steam folder   → steam    → steamapps    → compadata    →  1182900 folder    →  pfx     →  driver C    →  users  → steamuser   →  appdata      →  Roaming      →  aplague tale requiem folder      →  place the moded settings file next to it replacing the original one



⚠️ Known issues :


🛑 after using moded settings file you cant change in game settings like texture quality or shadows only resoultion and thats also reset after re launching the game.

the only true way is by editing the setting file itself and changing each values individually


🟡 Results :

the game looks and runs smoothly quality is sharp 80+ fps avarge