thanks for providing that detail. I previously thought the problem 
related to drawing speed.

That delay is caused by the emulation of the "plus (held)" and "minus 
(held)" button codes. Whenever Remote Buddy receives a plus and minus 
button down event, it starts a timer, which "fires" after the 
fraction of a second, by then making it a "held" button code. Now, if 
you release the button before the timer fires, Remote Buddy 
recognizes this as normal plus and minus button events, if you 
release it only after the timer fired, it is recognized as plus 
(held) and minus (held) button presses.

So, in consequence, you'll see that Remote Buddy does not instantly 
react to the button press, but that the desired action is instantly 
executed upon the release of that button, which is probably what 
makes you perceive the menu as slow.

If you don't need the "plus hold" and "minus hold" buttons, you can 
turn off their emulation in the preferences (Remotes pane > select 
Apple Remote > select Options tab > deselect the checkbox) for 
instant reaction.

I'll see what can be done for preview 7, though (including the 
speedup you mention).

Best regards, 
Felix