Hi Guys
Im new here to the forums.

I have been running these two games virtua striker 2 and sports jam on Nulldc 104_r136 (I assume its the latest version). I have those games on my dreamcast console but I always wanted to play them at Higher quality than what the dreamcast offers as much as as I can , and I assumed that can only be done on nulldc. The problem is that both games get a bit laggy (tried both cdi and gdi). my settings on nulldc:

Resolution: maximum supported (highest quality)
Aspect Ratio: strech
Paletted Textures: Dynamic,Full
Sort: triangle
Modifier Volumes: Normal and Clip(slowest,highest accuracy)
Zbuffer mode D24fs8 (fast when available , best precision)
texture cache mode: delete old

and I play the games on full screen with my laptop hooked to my 42 inch hd tv.

for my laptop , its a macbook pro with windows 7 ultimate 64 bit installed on the boot camp. with a processor 2.66 GHz , 8 GB ram.

I dont know if the problem is from the laptop, nulldc, or the games themselves.
please if someone can point out in case if there is a better null dc version to play those games, or are there better copies for the games.

thanks alot