| Renderer | FastFlag preference | Requests Auto, D3D11, Vulkan, or OpenGL. | Compatibility and stability vary by driver and GPU. | Allowlisted keys |
| Texture quality | FastFlags | Requests a texture-quality override and level. | Image detail versus memory and GPU workload. | Allowlisted keys |
| Mesh distance | Four FastFlags | Adjusts distances where CSG geometry changes level of detail. | Distant detail versus geometry workload and visual transitions. | Allowlisted keys |
| Grass | FastFlags | Adjusts minimum and maximum grass distance and reduced-motion factor. | Vegetation range or motion versus visual density. | Allowlisted keys |
| MSAA | FastFlag | Requests multisample anti-aliasing sample count. | Smoother edges can increase GPU work. | Allowlisted key |
| DPI / FRM quality | FastFlags | Controls DPI scaling behavior and requests an FRM quality override. | Clarity, scaling, and workload may differ by display. | Allowlisted keys |
| Graphics quality | Global settings | Stores Roblox’s saved quality level from 1 through 10. | Scene detail and effects versus rendering load. | Historical source |
| FPS cap | Global settings | Stores a frame-rate-cap value; later UI demonstrations include unlimited. | Maximum throughput versus heat, power, noise, and pacing. | Historical source |
| Transparency, motion, font | Global settings | Stores interface transparency, reduced motion, and font-size preferences. | Readability and comfort rather than “performance boost.” | Historical source |
| Shadows | Current mapping unverified | A Shadows control appears in later interface video evidence. | Lighting appearance versus GPU workload can be scene-dependent. | Visual evidence only |