NullDC 1.6 Help please.

I need help fixing a problem.
Here my problem I made a video and posted it on youtube. And Everything I tryed does not work.http://www.youtube.com/watch?v=UgAZ-GJFSuENow on here . The Music play 100% normal. but when playing the Computer sound like I on drugs or something.
IT Lags Just alittle to where it plays normal and goes Slow motion offend ( with out the recorder and open windows)
BUt the Problem is the Building/road/Whatever is blocking my view.
The comments There by CinemaGaming is the person I follow on his video on getting a Working NullDC1.6
here is his video I got it off.http://www.youtube.com/watch?v=gWJi4sWZQoUNow I dont know really anything about emulators ( Well this one at least.) and I tryed everything I can doThat I know of. Anything else I dont know about. BUt Is there a Program or something that can fix my problem

I think it's your hardware. The game works fine for me...

Replying to #2

yea I was told its my graphics Card not able to handle it all or something. SO I asking if there a Program or something that can help fix/aid the problem.