Remote Buddy goes a very long way to make sure you get the fastest 
response possible to a button press on your remote.

If you want an instant reaction to long button presses, you should 
only map one function to a button, though.

The background here is purely mathematical / physical. If you have two 
different actions mapped to a button, there needs to be a time limit 
to differentiate between a short and a long press. At the time you 
start pressing the button, RB can't know when you'll release it and 
thus won't be able to tell whether you want to trigger the action 
mapped to the long press of the button or the short press of the 
button. If you release the button before that time limit, RB will know 
its a short button press. If the time limit is stepped over and you 
still press the button, it knows you want to perform a long press.

Therefore, if you want an instant reaction to a button press, map only 
one action to that button. Remote Buddy then doesn't need to 
differentiate between two types of button presses for that one button 
and can initiate the execution of the mapped action as soon as you 
press the button.

Best regards, 
Felix Schwarz