Performance and Settings

Performance & Settings

Ryudeck offers live performance tuning via the Quick-Access blade.

Quick-Access Blade

• Trigger: Press L3 + R3 while in-game.
• Functionality: Adjust settings live without restarting the game.
• Scope: Settings are PER-GAME. Changing a setting for one title does not affect others.

Resolution Scale

• Default: x1.
• Usage: Increase resolution scale only for GPU-bound games to achieve a sharper image.
• Caveats:
  • This will NOT help CPU-bound games.
  • Pushing the scale too high can cause instability due to the Steam Deck's 4GB GPU budget.

CPU vs. GPU Bound

Many Switch games are CPU/JIT-bound (the emulated workload). In these cases:

• FPS is limited by the CPU, not the GPU.
• Lowering the resolution scale will not improve performance.
• This behavior mirrors the limitations on the original Switch hardware.

Memory Mode

• Default: HostMapped (bounds-checked, stable).
• Power User Option: HostMappedUnsafe offers a slight speed increase but risks hard crashes on bad dumps or buggy titles.

Performance Overlay

An in-game overlay displays:

• FPS
• Frametime
• GPU FIFO