Lakka on MK802II - Allwinner A10

Sorry if this is the wrong place to ask about this.

I am trying Lakka on my MK802, mostly for Sega Genesis emulators, but so far the results were not great.

The reason is I am getting better performance by running emulators on android - in Lakka I get Genesis plus GX to run, but I need around 600MHz to run a normal game, while on Android it can run on around 400MHz. But linux is supposed to be faster? And also, unfortunately, PicoDrive does not seem to run. A pity because it is a great emulator, works great standalone (although only in a small window), but with Lakka I am only getting a black screen and segmentation fault. Please help?