Just tried it. It runs worse than what I use currently.
This in .Ini:
[/script/engine.renderersettings]
r.MSAA.CompositingSampleCount=8
r.PostProcessAAQuality=6
[ScalabilityGroups]
sg.TextureQuality=3
sg.EffectsQuality=0
sg.FoliageQuality=0
sg.PostProcessQuality=0
sg.ViewDistanceQuality=3
sg.ShadowQuality=0
sg.AntiAliasingQuality=0
[/Script/Insurgency.INSGameUserSettings]
SpectatorSettings=(bXray=False,bShowControls=True,bMinimap=True,bTeamScores=True,bPlayerVitals=False)
bRelativeTeamColors=True
bAlwaysShowCompass=False
bShowContextualKeyHints=True
MasterVolume=0.813500
MusicVolume=0.000000
VoiceVolume=0.784500
ExcludedMatchRegions=("USEast","USWest","Asia","Australia","Russia","SouthAmerica")
ExcludedMatchGamemodes=("Skirmish","Firefight")
bClientNetStats=False
bAllowDynamicIngameLessons=True
bSelectedExcludedRegions=True
OverrideOptions=(("t.MaxFPS", (Value=120,bModified=True)),("r.MotionBlurQuality", (Value=0)),("r.ScopeRenderMode", (Value=0,bModified=True)),("r.Dismemberment", (Value=1)),("r.RagdollMaximum", (Value=8)),("r.FoliageInteractionQuality", (Value=0)),("r.ScreenPercentage", (Value=125,bModified=True)),("r.AmbientOcclusionLevels", (Value=0)),("r.MaxAnisotropy", (Value=16,bModified=True)),("r.TessellationAdaptivePixelsPerTriangle", (Value=9999999)),("r.SSR.Quality", (Value=0)),("r.Streaming.PoolSize", (Value=5000,bModified=True)),("r.Shadow.MaxResolution", (Value=2048,bModified=True)),("r.Shadow.MaxCSMResolution", (Value=2048,bModified=True)))
bClientStatLocation=False
bEnableFrameRateSmoothing=True
bEnableHUD=True
bEnableHighlights=False
bUseVSync=False
bUseDynamicResolution=False
ResolutionSizeX=2560
ResolutionSizeY=1440
LastUserConfirmedResolutionSizeX=2560
LastUserConfirmedResolutionSizeY=1440
WindowPosX=-1
WindowPosY=-1
LastConfirmedFullscreenMode=0
PreferredFullscreenMode=0
AudioQualityLevel=0
FrameRateLimit=0.000000
DesiredScreenWidth=1280
DesiredScreenHeight=720
LastRecommendedScreenWidth=-1.000000
LastRecommendedScreenHeight=-1.000000
LastCPUBenchmarkResult=-1.000000
LastGPUBenchmarkResult=-1.000000
LastGPUBenchmarkMultiplier=1.000000
bUseHDRDisplayOutput=False
HDRDisplayOutputNits=1000
[/Script/Engine.GameUserSettings]
bUseDesiredScreenHeight=False
I seem to be pretty stable at around 80- 90 ~ fps with this.
Also in -game settings is low preset and 1.25 resolution with very high on textures. GPU usage at 70~% and CPU sometimes at 100% although I run with HP disabled.