• 1. Press Win+R and tape AppData. Open "Local" --> "DDeception" --> "Saved" --> "Config" --> "WindowsNoEditor"
  
• 2. In this program files, search "Settings" and open with notepad
  
• 3. You will see this

(the numbers change with your game configuration)
[Settings]
r.VSync=1
r.setres=1366x768wf
t.MaxFps=60
r.myGamma=2.12363
sg.ResolutionQuality=100
sg.AntiAliasingQuality=1
sg.ShadowQuality=2
sg.TextureQuality=2
sg.EffectsQuality=0
GameAudio.Subtitles=1
GameAudio.MusicVolume=1

here you need change sg.ShadowQuality=2 to sg.ShadowQuality=0

• 4. Press Ctrl+G to save
  
• 5. Feel the joy playing

Low=0
Medium=1
High=2
Epic=3