The in Yuzu is a critical performance feature that stores compiled GPU instructions on your disk so they don't have to be recalculated every time you play. Without a pre-existing cache, your CPU must compile these "shaders" in real-time when new effects appear, often resulting in noticeable micro-stuttering or frame drops. How Shader Caching Works
Users can manually manage their shader caches through the Yuzu interface: Installation yuzu shader cache
This is frustrating and usually indicates that your shader cache is being invalidated. This can happen for several reasons: The in Yuzu is a critical performance feature