Smartphone Joystickers How to prepare my game to it?

Hello,

My game was first seted up to keyboard (keybord object). For mobiles I will setup the touch object.

But when the joyticks for smartphones are the case, and there are so many diferent options, how it works? Only configure one joystick object is enough or there are more thinks I want to know?

In the script, have 3 options ('or' blocks) by each type of control(keyboard, touch and joystick) in each action, can be a performance problem to my game?

Thank you!