I was using PJ64 1.7 to get the field lines with the emulation. The plugin can be used to have HD type graphics. The only lag I experienced was when I was recording it.
One thing I'd like to have is being able to choose which computer team I face, like in the Blitz games after 2001. Just a suggestion, nothing you should lose sleep over.
Have you been asking for help on other hacking forums?
http://postimg.org/image/6trpfegnv/
Oh that's great! Update ROM?