copy and paste to engine.ini

[/script/engine.renderersettings]

r.AllowLandscapeShadows=0
r.AllowPointLightCubemapShadows=0
r.AllowPrecomputedVisibility=0
r.AllowSimpleLights=1
r.AllowStaticLighting=1
r.AmbientOcclusionLevels=0
r.AmbientOcclusionMaxQuality=0
r.AOQuality=0
r.AOHeightfieldOcclusion=0
r.Atmosphere=0
r.BloomQuality=0
r.ContactShadows=0
r.DBuffer=1
r.Decal.FadeDurationScale=0.125
r.DepthOfField.DepthBlur.Scale=0
r.DepthOfFieldQuality=0
r.DetailMode=0
r.DFShadowQuality=0
r.DistanceFieldAO=0
r.DistanceFields=0
r.DistanceFieldGI=0
r.DistanceFieldShadowing=0
r.DOF.Recombine.Quality=0
r.DoTiledReflections=0
r.Downsample.Quality=0
r.DynamicRes.TestScreenPercentage=0
r.EarlyZPass=0
r.EyeAdaptation.Basic.Compute=0
r.EyeAdaptationQuality=1
r.EyeAdaptation.BlackHistogramBucketInfluence=0
r.FastVRam.DOFSetup=0
r.FastVRam.EyeAdaptation=0
r.FastVRam.MotionBlur=0
r.FastVRam.ShadowPerObject=0
r.FastVRam.ShadowPointLight=0
r.Fog=0
r.FogDensity=0
r.ForwardShading=1
r.SimpleForwardShading=0
r.ForceSceneHasDecals=0
r.FullScreenMode=0
r.GenerateLandscapeGIData=0
r.GenerateMeshDistanceFields=0
r.GBufferFormat=0
r.GTAO.Combined=0
r.GTAO.Upsample=0
r.HighQualityLightMaps=1
r.HFShadowQuality=0
r.HLOD=0
r.HLOD.DistanceOverride=0
r.IndirectLightingCache=0
r.IrisNormal=0
r.LandscapeLODBias=0
r.LensFlareQuality=0
r.LightFunctionQuality=0
r.LightCulling.Quality=1
r.LightShaftQuality=0
r.NormalMapsForStaticLighting=1
r.MaxQualityMode=0
r.MaxCSMRadiusToAllowPerObjectShadows=0
r.Mobile.AllowDistanceFieldShadows=0
r.Mobile.AlwaysResolveDepth=0
r.Mobile.AmbientOcclusion=0
r.Mobile.AmbientOcclusionQuality=0
r.Mobile.EyeAdaptation=0
r.Mobile.HighQualitySkyCaptureFiltering=0
r.Mobile.SkyLightPermutation=0
r.ParticleLightQuality=0
r.PathTracing.EnableEmissive=0
r.MotionBlurQuality=0

r.ForceHighestMipOnUITextures=0
r.ForceLOD=0
r.PostProcessAAQuality=0
r.PostProcessAllowBlendModes=0
r.PostProcessing.DisableMaterials=0

r.ReflectionEnvironment=0
r.RefractionQuality=0
r.SupportSimpleForwardShading=0
r.SupportStationarySkylight=1

r.SeparateTranslucency=0
r.ShadowQuality=0
r.Shadow.ResolutionScaleZeroDisablesSm=1
r.Streaming.LimitPoolSizeToVRAM=1
r.Streaming.UsePerTextureBias=1
r.Streaming.PoolSize=512
r.Streaming.FullyLoadUsedTextures=0
r.SkyLightingQuality=1
r.SkylightIntensityMultiplier=0
r.SkyAtmosphere=1
r.SSGI.Enable=0
r.SSR.Quality=0
r.SSS.Quality=0
r.Tonemapper.Quality=0
r.TextureStreaming=-1
r.ViewDistanceScale=1
r.VolumetricFog=0
r.VolumetricCloud=0
r.VolumetricCloud.SkyAO=0
r.VolumetricCloud.ShadowMap=0
r.VSync=0
r.CapsuleShadows=0
r.CapsuleDirectShadows=0
r.CapsuleIndirectShadows=0
fx.EnableNiagaraSpriteRendering=0
fx.EnableNiagaraMeshRendering=0
fx.MaxCPUParticlesPerEmitter=4