Heey, I'm new to this game, I'm level 7 and I am now at an quest but I don't know where I have to go for the quest location!?

And does anybody know where I can get some good armor and weps etc.
Or where can I earn much money?

And how do you gain the money of the treausre chests?

last but not least, how Do I speed up the game to make it smoother on my galaxy I5800(apollo) android.