I agree, the actress is a dead ringer for Ting Pei. However, after reading about her and the fact that she produced her version of the events with "Bruce Lee and I" in 1976, I doubt she would have made this film just a year after his death that threw nearly every rumor about the two and her issues into the plot.
Here is a quick bio of
Betty Ting Pei from Wikipedia - again, from what is described here, I would be very surprised if she was in this initial Brucesploitation film.