What does the option button between mobile and Hd do in the settings menu?

Hi there, congrats on the game but, Is there any way I could improve the AI?? Just played a couple of games and AI seems to make "no sense" moves if you know what I mean... Some videos on youtube that I saw made think that game was worth buying. When playing the game I discover a huuuuge difference and the game seens to be no challenging at all. I downloaded it today. I am missing any patch? Regards ...

It is possible to choose your own faction setup?

I have tried to start 3 different games and after 2+ days I am still waiting for players to choose a faction. If it takes this long to just "setup" then the game will never end. So far I have enjoyed the games vs. AI but I would really prefer to play against other people....

Asking for a friend :)