[thebearnecessit]

first read the first post to get an idea of what android build and xbmc app to use etc.

then, off the top of my head you might want to search this thread for the following things:

crucial:
1 aspect ratio
2 android bar
(also, make sure you exit xbmc before you turn off the machine)

those are the main things but if you really want a great performance then you might want to try these:
3 using the mygica xbmc app, with the geniatech android firmware (see post 390)
4 saving the xbmc "userdata" folder to an sd card
5 advanced settings file

but none of these things are possible unless you are confident on computers. i'm afraid its a case of searching the thread and trying to figure things out since no-one has made a detailed guide yet.

but some of it is not straight forward so post back again if you get stuck.