01.Introduction: The 60 FPS Limit
By default, Roblox locks the game at 60 FPS. this is terrible for obbies and shooters (Arsenal/Phantom Forces). While we used "rbxfpsunlocker.exe" in the past, today Bloxstrap does that and much more.
What is Bloxstrap?
It is a secure, open-source alternative launcher for Roblox. It allows you to inject configurations (FastFlags) before the game starts. It replaces the official launcher and improves Discord integration.
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02.Chapter 1: Installing and Configuring Bloxstrap
- Download Bloxstrap from the official GitHub (pizzaboxer/bloxstrap).
- During installation, navigate to "FastFlags".
- In "Framerate Limit", enter 9999 or your monitor's refresh rate (e.g., 165).
- For "Rendering Mode", leave it on Automatic or force Direct3D 11 (usually the most stable).
- Complete the installation. Open your games via the Roblox website as usual; Bloxstrap will take over.
03.Chapter 2: Magic FastFlags (JSON)
You can manually edit the ClientAppSettings.json file or use the Bloxstrap editor. Add these flags for extreme performance:
"DFIntTaskSchedulerTargetFps": 9999,
"FFlagDebugGraphicsDisableShadows": true,
"FFlagDebugGraphicsPreferD3D11": true,
"FFlagDebugGraphicsQualityLevel": 1,
"FIntDebugForceMSAASamples": 0,
"FFlagGlobalWindRendering": false
}
Explanation: This removes shadows and wind, forces quality level 1 (below the minimum allowed by the in-game menu), and disables Anti-Aliasing.
04.Chapter 3: Lighting Technology
Modern games use "Future Lighting" (resource-intensive).
You can attempt to force older lighting methods (Voxel or ShadowMap) via FastFlag, though some games may appear too dark.
Flag: "FFlagDebugForceFutureIsBrightPhase3": false
A1.Chapter 4: Reducing Ping (Routing)
Roblox lacks local servers in many regions, often resulting in 150ms+ latency to the US.
Bloxstrap can display your current server region (Ctrl+Shift+F5).
Always use an Ethernet cable; Wi-Fi is prone to fluctuations with Roblox's UDP protocol.
A2.Chapter 5: Plastic Textures (Potato Mode)
There are unofficial texture packs that make everything smooth (Plastic style).
In Bloxstrap, navigate to "Mods," enable "Old Death Sound" (optional), and look for the option to apply custom textures.
Replacing texture files with 1x1 transparent pixels forces the game to load solid colors instead of wood or concrete textures, saving significant VRAM.
A3.Chapter 6: Rendering API (Vulkan vs D3D11)
If you have a very old PC (Intel HD 2000/3000): Try using Vulkan or OpenGL via FastFlags.
Sometimes Vulkan manages limited video memory better than DX11.
Flag: "FFlagDebugGraphicsPreferVulkan": true
A4.Chapter 7: Windows Priority and Background FPS
When Roblox is in the background (Alt+Tab), it reduces FPS to 15 to save power.
If you want to AFK farm with high FPS so your macros stay accurate:
Flag: "DFIntTaskSchedulerTargetFpsWhenBackground": 60
Chapter 8: Antivirus Issues
While the Bloxstrap injection is safe, some free antivirus programs (like Avast) may block it. Add the Bloxstrap installation folder to your antivirus exclusions.
Chapter 9: Voltris Optimizer for Roblox
Voltris Optimizer detects the RobloxPlayerBeta.exe process and automatically applies the High Performance power plan and clears standby RAM, which significantly helps in open-world games like Jailbreak.
Chapter 10: Exclusive Fullscreen
Roblox uses "Borderless Windowed" by default, which introduces input lag.
Press Alt+Enter to attempt to force true fullscreen (driver-dependent) or use the flag: "FFlagHandleAltEnterFullscreenManually": true.
Don't do it Manually.
Voltris Optimizer automates this entire guide and removes Windows delay in seconds.
Written by a verified expert
Douglas Felipe M. Gonçalves
Expert in Windows system optimization with years of experience in hardware diagnostics, kernel tuning, and advanced technical support. Founder of Voltris and developer of the Voltris Optimizer.
Meet the Voltris TeamConclusion and Next Steps
By following this guide on Roblox High Performance (2026): Bloxstrap & FastFlags, you are equipped with the verified technical knowledge to solve this issue with confidence.
If you still have difficulties after following all steps, our expert support team is available for a personalized remote diagnosis. Every system is unique and may require a specific approach.