How to Increase FPS in Dolphin
Using the Dolphin Wii emulator is like playing Nintendo Wii games on your computer. However, video game emulation does not always give you ideal graphics and performance and will run at a very low FPS (frames per second) if settings are not changed to speed up the emulator. The Dolphin Wii emulator will need to have its settings fine-tuned before you will see an FPS speed similar to playing on an actual Wii console.
Start the Dolphin emulator program and single-click the "Graphics" button that you see near the top of the main Dolphin software window.
Click the "Hacks" tab, which is the middle tab on the top of the "Graphics" configuration window. Select the "Disable Fog" setting near the top of the window. This will reduce emulation stress on your computer's CPU. Click "Close" to save the settings.
Click the "Config" button on the main Dolphin software window and make sure the following settings are enabled:"Dual Core""Idle Skipping""JIT Recompiler""CPU Emulator Engine"If they are not enabled, click the small box next to each one to display a check mark. Click the "OK" button to save the settings.
Click the "Open" button on the main Dolphin software window and select the Wii/Gamecube game that you would like to play with the new settings. Click "OK" to start the game. The game will start using the new performance settings and the FPS will now be much faster.