The UI is stripped down. No fancy cover flow animations, no online play menus. Just a simple list of your games and a straightforward settings panel. This saves precious background resources.
This specific version (often associated with the "Dolphin for Handheld" or "Dolphin MMJR" projects) is popular because it includes pre-configured hacks and settings that help lower-powered handhelds run demanding games at playable speeds. Key Features of Version 1.2.1 Performance Hacks: dolphin for handheld 1.2.1
If you have been frustrated by lag in mainline Dolphin, download version 1.2.1, apply the hacks outlined above, and rediscover your favorite classics — this time, in the palm of your hand. The UI is stripped down