It sounds like you're looking for a related to the Dolphin Ishiiruka emulator.
This is the selling point. In standard Dolphin, when a game uses a new visual effect (like a sword swing or an explosion), your PC must compile the shader on the spot, causing a micro-freeze or stutter. Ishiiruka compiles shaders in the background, giving you a buttery-smooth experience—especially on weak CPUs. Dolphin Ishiiruka Emulator
Like all emulators, Ishiiruka is legal to use, but you must provide your own game files (ISOs) extracted from discs you own. How to Get Started Find the latest build on the official Ishiiruka GitHub or reputable community forums. It sounds like you're looking for a related