Porkbelly here. Thanks and nice to see this post! I'll also note that it was user LanHawk who typed up and sent me the NYCPSW code, I just changed the keycodes and got it working on the emulator. I really didn't notice a terrible responsiveness problem although it was certainly painful to play. I did take a video of that winning session if you want it. :)
I didn't upload to YT, but they are just small mp4, I dropped here.
I just hold the movement direction key down and it works ok, just need to stop moving a split second before holding down fire key makes it tricky. Only one key is reading at a time.
https://www.mediafire.com/folder/uwzk0jb41d2bg/Star_Wars