Hi,
Goto will probably have an edge in perfs because it's a direct order to go to a specific state.
But still, to got to that state, the algorythm has to iterate the list of states in the fsm, and to send and event is also iterating through the state and checking if it has this event as a global event to enter.
So in the end, go with what feels right for you, both are fine.
Bye,
Jean