Choose Preferences... from the Apple2Mac menu to open the preferences dialog.
Here you can configure the speed of emulation. You can toggle between both speeds by selecting the Toggle CPU Speed choice in the Apple2Mac menu. This can be useful to slow up gameplay for difficult games, or to speed up boot times. Have fun!
Audio configuration tab.
Video configuration tab.
Joystick device (including emulated joystick) configuration tab. See the joystick information page.