Before jumping into the guide, here are some samples of how the game looks like on my machine.

My specs are as follow:
CPU: AMD Ryzen 7 7800X3D 4.2 GHz (5.0 GHz boost)
GPU: NVidia GeForce RTX 4070 Super, @106% power limit with Afterburner
Memory: 32GB DDR5 6000Mhz
Storage: M.2 SSD
Resolution: 3440x1440 @144Hz
Sound Card: Creative Sound Blaster AE-5 32 bit, 96000 Hz
Average performance (full match): 60~85 fps depending on the map and how many players are in the area, occasional dips to 58 fps when things are extremely dense.
Estimated performance cost: up to 25%, but still mostly above 60 FPS (in my case)

• You can adjust any in-game setting to your own taste, these are just my settings for reference.

• Window mode: Stick to fullscreen, other modes do cause small amounts of input lag.

• Anti-aliasing (AA): I prefer TAA over DLSS or DLAA, I'm just not a fan of blurry sh*t, TAA seems to be the most crisp out of all.

If you don't know how to add Post Scriptum to the settings, see below:


Here are my settings

First you need to find your config folder, which is located in your local appdata folder. (If you already know how to do this, skip to the next section)

This folder is not visible in your file explorer, so you need to do the following:

1. Enter %localappdata% into the address bar of your explorer, find the PostScriptum folder, and then proceed to the WindowsNoEditor sub-folder:

-
-

2. Optional: create a backup folder, and copy pasta all your ini files in there if you wanna be safe.

3. Open Engine.ini with Notepad or Notepad++[notepad-plus-plus.org].

Open Engine.ini, leave whatever is already in the file as is, copy paste the following in the empty space, and then save it.

[Core.Log]
Global=all off ;

[/script/engine.garbagecollectionsettings]
TimeBetweenPurgingPendingKillObjects=0 ;

[TextureStreaming]
r.TextureStreaming=0 ;

[SystemSettings]
r.AllowHDR=0 ;
r.FinishCurrentFrame=0 ;
r.OneFrameThreadLag=1 ;
r.FullScreenMode=0 ;
r.GTSyncType=0 ;
r.RHICmdBypass=0 ;
r.GPUCrashDebugging=0 ;
r.CreateShadersOnLoad=1 ;
Compat.UseDXT5NormalMaps=0 ;
r.MaxAnisotropy=16 ;
r.TessellationAdaptivePixelsPerTriangle=48 ;
r.MipMapLODBias=-1 ;
r.LandscapeLODBias=-1 ;
r.SkeletalMeshLODBias=-1 ;
r.ParticleLODBias=-1 ;
r.ShadowQuality=5 ;
r.Shadow.CSM.MaxCascades=8 ;
r.Shadow.MaxResolution=4096 ;
r.Shadow.MaxCSMResolution=4096 ;
r.Shadow.RadiusThreshold=0.03 ;
r.Shadow.DistanceScale=1.00 ;
r.Shadow.CSM.TransitionScale=1.00 ;
r.AllowLandscapeShadows=1 ;
r.DistanceFieldShadowing=1 ;
r.ContactShadows=1 ;
r.AllowStaticLighting=0 ;
r.IndirectLightingCache=1 ;
r.PostProcessAAQuality=6 ;
r.ScreenPercentage=100 ;
r.SceneRenderTargetResizeMethod=0 ;
r.Filter.SizeScale=1 ;
r.Tonemapper.Quality=5 ;
r.Tonemapper.MergeWithUpscale.Mode=1 ;
r.TonemapperFilm=1 ;
r.Tonemapper.GrainQuantization=1 ;
r.GenerateMeshDistanceFields=1 ;
r.DefaultFeature.AmbientOcclusion=1 ;
r.DefaultFeature.AmbientOcclusionStaticFraction=1 ;
r.AmbientOcclusionMipLevelFactor=0.4 ;
r.AmbientOcclusionMaxQuality=100 ;
r.AmbientOcclusionLevels=3 ;
r.AmbientOcclusionRadiusScale=1.5 ;
r.AmbientOcclusion.FadeRadiusScale=1 ;
r.AmbientOcclusionSampleSetQuality=1 ;
r.AmbientOcclusion.Compute=0 ;
r.ReflectionEnvironment=1 ;
r.ReflectionEnvironmentLightmapMixBasedOnRoughness=1 ;
r.ReflectionEnvironmentLightmapMixing=1 ;
r.ReflectionEnvironmentLightmapMixLargestWeight=1000 ;
r.DepthOfFieldQuality=2 ;
r.ViewDistanceScale=1.0 ;
r.LightMaxDrawDistanceScale=1 ;
r.LightShaftQuality=1 ;
r.LightShaftFirstPassDistance=0.06 ;
r.LightFunctionQuality=2 ;
r.MotionBlurQuality=4 ;
r.BloomQuality=5 ;
r.SceneColorFringeQuality=1 ;
r.SceneColorFringe.Max=0 ;
r.VolumetricFog=1 ;
r.MaterialQualityLevel=1 ;
r.DetailMode=2 ;
r.ParticleLightQuality=1 ;
r.Atmosphere=1 ;
grass.DensityScale=1.0 ;
foliage.DensityScale=1.0 ;
r.MinTimeBetweenTicks=8 ;
r.ParticleMinTimeBetweenTicks=8 ;
r.DefaultFeature.AutoExposure=1 ;
r.MSAA.CompositingSampleCount=1 ;
r.DontLimitOnBattery=1 ;

[ConsoleVariables]
AllowAsyncRenderThreadUpdates=1 ;
AllowAsyncRenderThreadUpdatesDuringGamethreadUpdates=1 ;
AllowAsyncRenderThreadUpdatesEditor=1 ;
s.AsyncLoadingThreadEnabled=1 ;
r.OptimizeForUAVPerformance=1 ;
[/code]

• How to revert to normal?

Delete the Engine.ini file, the next time you launch the game, a new one will be automatically generated with default parameters.

• How to clear cache while keeping the settings?

1. Make a backup of the following files in the folder aforementioned folder: (C:\Users\yourusername\AppData\Local\PostScriptum\Saved\Config\WindowsNoEditor\)

• Engine.ini
  
• GameUserSettings.ini
  
• Input.ini

2. Clear cache (recommend manual, by deleting the entire PostScriptuim folder in the appdata)

3. Launch the game, then exit the game.

4. Paste those backup ini files back into that folder.

5. If the shadow in the main menu scene doesn't look different, that's normal, in game shadows will still be different.