MECCHA CHAMELEON: Smash 2-3x FPS on Potato PCs

Your laptop or budget rig chokes the second shit gets real in MECCHA CHAMELEON? Yeah, welcome to the club. The default engine config is built for mid-range hardware, so weaker machines get stutter and single-digit frame rates. This guide shows you how to manually edit the engine config file—no external tools, no mods, just a straight data tweak that can 2-3x your FPS. Trust me, it works.

 

The Problem: Devs Didn’t Give a Damn About Low-End

MECCHA CHAMELEON ships with Unreal Engine bloat that’s pure overkill for integrated graphics or old GPUs. Lumen, ray-traced reflections, motion blur, high-res shadows—all that crap eats your GPU cycles for breakfast. Even at the lowest in-game settings, it’s a choppy mess. The fix? Not in the menu. You go straight to a plain-text config file and force the engine to prioritize frame rate over pretty pixels.

 

Step-by-Step: Create & Edit Engine.ini

It’s simple but precise. Miss a step and the game resets your changes. Don’t be that guy.

1. Find the Config Folder. Open Windows File Explorer, paste this into the address bar: %LocalAppData%\Chameleon\Saved\Config\Windows. Hit Enter. That’s where the engine settings live.
2. Make the Engine.ini File. In the Windows folder, right-click empty space > New > Text Document. Rename it to Engine.ini. Make damn sure the extension is .ini, not .txt. Can’t see extensions? Enable them in File Explorer’s View tab.
3. Paste the Optimization Parameters. Right-click Engine.ini > Open with > Notepad. Delete any default text, then paste the block below. This is the juice.

   [SystemSettings]
   r.ScreenPercentage=50
   r.DefaultFeature.AntiAliasing=1
   r.AntiAliasingMethod=1
   r.Tonemapper.Sharpen=1.5
   r.MipMapLODBias=0
   r.MaxAnisotropy=8
   r.TextureStreaming=0
   r.Streaming.PoolSize=-1
   r.Streaming.LimitPoolSizeToVRAM=0
   r.Streaming.UseFixedPoolSize=0
   r.Streaming.MaxTempMemoryAllowed=512
   r.Streaming.FullyLoadUsedTextures=0
   r.VirtualTextures=0
   r.VirtualTexture.Anisotropy=0
   r.VT.FeedbackFactor=0
   r.VSync=0
   r.bUseVSync=0
   t.MaxFPS=0
   r.GTSyncType=1
   r.FinishCurrentFrame=0
   r.FrameRateFlexibility=5
   r.RenderThreadMeasuredSeconds=1
   r.D3D12.StablePowerState=0
   r.ShaderPipelineCache.Enabled=1
   r.ShaderPipelineCache.ReportFrameTime=0
   r.ShaderPipelineCache.BackgroundCompilationSoH=1
   r.ShaderPipelineCache.PreOptimizeWithBackgroundCompilation=1
   r.XGEController.Enabled=0
   r.Shaders.Optimize=1
   r.Shaders.FastMath=1
   r.D3D12.ForceEarlyImplicitRootsigCreation=1
   r.DynamicGlobalIlluminationMethod=0
   r.Lumen.DiffuseIndirect.Allow=0
   r.Lumen.Reflections.Allow=0
   r.ReflectionMethod=0
   r.RayTracing.ForceAllRayTracingEffects=0
   r.DiffuseIndirect.Allow=1
   r.LumenScene.Radiosity=0
   r.LumenScene.DirectLighting=0
   r.Lumen.HardwareRayTracing=0
   r.MotionBlurQuality=0
   r.MotionBlur.Max=0
   r.MotionBlur.Amount=0
   r.MotionBlur.Scale=0
   r.BlurGBuffer=0
   r.BloomQuality=0
   r.DepthOfFieldQuality=0
   r.SSR.Quality=0
   r.SceneColorFringeQuality=0
   r.EyeAdaptationQuality=1
   r.ShadowQuality=0
   r.Shadow.MaxResolution=64
   r.Shadow.DistanceScale=0.3
   r.Shadow.CSM.MaxCascades=0
   r.DistanceFieldShadowing=0
   r.ContactShadows=0
   r.AllowLandscapeShadows=0
   r.HZBForOcclusion=0
   r.AllowOcclusionQueries=1
   r.SkeletalMeshLODBias=1
   r.StaticMeshLODBias=1
   r.MeshDrawCommands.ParallelPassSetup=1
   r.bHighPriorityLoadingCriticalSections=1
   r.GpuTimestampRenderThreadFix=1
   r.CreateShadersOnLoad=1
   r.bForceThrottlingVariable=0
   WinGDI.AllowDirectManipulation=1
   r.AsyncCompute=1
   r.EnableAsyncComputeOnEveryScene=0
   r.OneFrameThreadLag=1
   r.BatchSize=0
   s.AsyncLoadingThreadEnabled=1
   s.AsyncLoadingTimeLimit=20.0
   s.LevelStreamingActorsUpdateTimeLimit=20.0
   s.UnregisterComponentsTimeLimit=20.0
   
   [SystemSettingsEditor]
   bInitializePhysicsOnCreation=1
   
   [Core.System]
   gc.MaxObjectsNotConsideredByGC=16384
   gc.SizeOfPermanentObjectPool=0
   gc.FlushStreamingOnGC=0
   gc.NumObjectsPerNotice=10000
   gc.LowMemoryIfCleanUpEachFrame=0
   
   [/script/engine.engine]
   gc.TimeBetweenPurgingPendingKillObjects=300.0
   
   [SystemSettings]
   r.Streaming.AmortizeCPUToGPUCopy=1
   r.Streaming.MaxNumTexturesToStreamPerFrame=1
   r.Streaming.Boost=0
   r.FrameTimeSmoothingFactor=0

    

4. Save and Lock the File. In Notepad, File > Save. Close it. Right-click Engine.ini > Properties. At the bottom of the General tab, check Read-only. Click Apply > OK. This is non-negotiable—skip this and the game overwrites your settings on next launch. You’ll be back to square one.

 

Tips, Tuning, and Troubleshooting

The line r.ScreenPercentage=50 is the big one. It renders at half res in each dimension—25% of your native pixels. That’s your 2-3x FPS boost. Want a sharper image and can spare a few frames? Bump it to r.ScreenPercentage=65. For extreme performance on a true potato, drop to 35.

The config nukes high-end features: Lumen, ray tracing, motion blur, bloom, depth of field, and most shadows—all off. That’s the point. It also tweaks garbage collection and asset streaming to cut CPU stutter, which is usually the bottleneck on older processors.

If shit breaks: Make sure the file is Engine.ini, not Engine.ini.txt. Double-check Read-only is on. If the game crashes on launch, delete the file, launch the game to generate a fresh default, then repeat the process. And for the love of god, don’t paste extra spaces or characters.