If you're looking for a known working 60 FPS code for a particular game (e.g., Wind Waker, F-Zero GX, Mario Kart Wii, Twilight Princess ), I can provide the and instructions to paste into Dolphin – no shady download needed.
You're looking for a link to a Dolphin emulator mod that allows for 60 FPS gameplay! dolphin emulator mod 60fps link
This one is tricky. Metroid Prime runs at 60 FPS internally for first-person view, but drops to 30 FPS for the HUD and third-person morph ball. A specific AR (Action Replay) code forces the HUD to keep up. If you're looking for a known working 60
: Some 60 FPS mods might cause the game to run at double speed unless the specific code also includes a "speed fix". Audio Desync Mario Kart Wii