You're not going to get any good performance on 3D mame games on the Pi.
But for Soul Calibur and all other arcade games that run on a Naomi or Atomiswave board use Flycast.
@wolfyn-claw I have had similar problems experimenting with Ubuntu 64bit. I don’t believe your going to get much help with that. However you could try installing retropie on raspberry pi is beta 64 version. It worked for me.