change config of a UE4 game

C:\Users\\AppData\Local\\Saved\Config\WindowsNoEditor\GameUserSettings.ini

basic low end computer setup

[ScalabilityGroups]
sg.ResolutionQuality=100.000000
sg.ViewDistanceQuality=1
sg.AntiAliasingQuality=0
sg.ShadowQuality=1
sg.PostProcessQuality=1
sg.TextureQuality=1
sg.EffectsQuality=1
sg.FoliageQuality=1

[/Script/Engine.GameUserSettings]
bUseVSync=False
bUseDynamicResolution=False
ResolutionSizeX=1440
ResolutionSizeY=900
LastUserConfirmedResolutionSizeX=1440
LastUserConfirmedResolutionSizeY=900
WindowPosX=-1
WindowPosY=-1
FullscreenMode=2
LastConfirmedFullscreenMode=2
PreferredFullscreenMode=2
Version=5
AudioQualityLevel=0
LastConfirmedAudioQualityLevel=0
FrameRateLimit=0.000000
DesiredScreenWidth=1280
bUseDesiredScreenHeight=False
DesiredScreenHeight=720
LastUserConfirmedDesiredScreenWidth=1280
LastUserConfirmedDesiredScreenHeight=720
LastRecommendedScreenWidth=-1.000000
LastRecommendedScreenHeight=-1.000000
LastCPUBenchmarkResult=-1.000000
LastGPUBenchmarkResult=-1.000000
LastGPUBenchmarkMultiplier=1.000000
bUseHDRDisplayOutput=False
HDRDisplayOutputNits=1000