C:\Users\ユーザーネー厶\AppData\Local\DeadByDaylight\Saved\Config\WindowsNoEditor
内のEngine.iniを開き、中のテキストを全部消した後以下をペーストして上書き保存してください。保存後はファイルのプロパティで読み取り専用にしてください。
これによりステイン強調、霧削除、画面明るくなる、5m以上先の壁や岩が透明化。でもトーテム、発電機、チェスト、ゲート、ハッチなどはしっかり見えます。
視界を悪化させる各種エフェクトも全てOFFになり視野も快適動作も快適もーりー仕様です。

[/script/engine.engine]
bSmoothFrameRate=false
MinSmoothedFrameRate=2
MaxSmoothedFrameRate=60
bUseVSync=false
IdealLightMapDensity=0.02
MaxLightMapDensity=0.05

[/script/engine.rendereroverridesettings]
r.EmitterSpawnRateScale=0
r.LightFunctionQuality=0
r.Fog=0
r.Color.Mid=1.2
r.ViewDistanceScale=0.25
r.SeparateTranslucency=False
r.DefaultFeature.Bloom=False
r.DefaultFeature.MotionBlur=False
r.DefaultFeature.LensFlare=False
r.DefaultFeature.AntiAliasing=0
r.DefaultFeature.AmbientOcclusion=False
r.DefaultFeature.AmbientOcclusionStaticFraction=False
r.ShadowQuality=0
r.Shadow.CSM.MaxCascades=0
r.Shadow.MaxResolution=32
r.Shadow.RadiusThreshold=0.24
r.Shadow.DistanceScale=0.1
r.DepthOfFieldQuality=0
r.TranslucencyLightingVolumeDim=1
r.RefractionQuality=1
r.SceneColorFormat=3

[Core.System]
Paths=../../../Engine/Content
Paths=%GAMEDIR%Content
Paths=../../../DeadByDaylight/Plugins/Runtime/Bhvr/OnlinePresence/Content
Paths=../../../DeadByDaylight/Plugins/Runtime/Bhvr/VersionNumber/Content
Paths=../../../Engine/Plugins/Experimental/RemoteSession/Content
Paths=../../../Engine/Plugins/Runtime/HoudiniEngine/Content
Paths=../../../DeadByDaylight/Plugins/Wwise/Content
Paths=../../../Engine/Plugins/2D/Paper2D/Content
Paths=../../../Engine/Plugins/Editor/CryptoKeys/Content
Paths=../../../Engine/Plugins/Editor/MeshEditor/Content
Paths=../../../Engine/Plugins/Enterprise/DatasmithContent/Content
Paths=../../../Engine/Plugins/Enterprise/VariantManagerContent/Content
Paths=../../../Engine/Plugins/Media/MediaCompositing/Content
Paths=../../../Engine/Plugins/Runtime/Bhvr/MirrorsAnalytics/Content
Paths=../../../Engine/Plugins/Developer/AnimationSharing/Content