This is probably a question for Kong more than anyone else.
I want to make the following changes to the config file used by ArcadeOX's version of MAME/MESS.
Code:
# WINDOWS PERFORMANCE OPTIONS
multithreading 0 -> 1
# WINDOWS VIDEO OPTIONS
prescale 1 -> 4
# FULL SCREEN OPTIONS
triplebuffer 0 -> 1
Turning on multithreading increases performance of the game.
Switching prescale from 1 to 4 increases the crispness of the games.
Triplebuffer prevents screen tear on fullscreen mode.
This does not affect the gameplay in any way, it is just for increased performance and better look when I play. See comparison shot below. Left is default settings, right is with settings as posted above. Screenshot from MAME on my computer.