These aren't simple graphics settings you toggle in Dolphin. Game logic—physics, AI, animation timing, and input processing—is often tied directly to the framerate. A "dumb" doubling of FPS would cause games to run at double speed. 60 FPS mods work by hacking the game's executable code (often via Action Replay/Gecko codes or ISO patches) to recalculate how the game processes time, allowing it to render more frames without accelerating gameplay.
Copy and paste the hex code from the wiki into the appropriate field (usually under the Overclock the Emulated CPU dolphin emulator mod 60fps
If the game starts running in "fast forward," you likely need to enable Emulation > Frame Skipping or adjust the Internal Resolution These aren't simple graphics settings you toggle in Dolphin
