BigDDDong, I agree, she does look somewhat like Keisha. This video is grainy because it was a VHS rip by ED, who is a ripper of vintage porn. If you go to vintage forums you will see a lot of clips that he ripped & normally they are very good compared to the rips by others. I think in this one it was just the quality of the source tape. There really isn't that much you can do to fix that.
I realize that, which is why I wrote it when I uploaded it. There's no reason to say the exact same thing that was already in the subject line.