well yeah you use whats good for your pc. but its not mame with the problem. its more an issue with the cpu memory that mame needs if its not fast enuff maybe more memory is needed or a faster cpu . i have a 2 gig CPU with 1 gig of memory and mame is fine on my pc. thats why kawaks is good as it uses less cpu power and memory. so it is wise to use an emulator that best suits your needs and pc.