Does anyone know how to disable the crowd in the Triple Threat arena?

Had to disable the crowd for regular arenas to get a stable 60 fps but unfortunately that setting doesn't also disable the Triple Threat arena crowd which is causing me to drop frames. Does anyone know if it's possible to disable the Triple Threat arena crowd?

Turn off the crowd in settings.

Turn off the crowd in settings.

Unfortunately that only turns off the crowd in regular arenas. For whatever reason the crowd in the Triple Threat arena can't be disabled via the settings. Really hoping that one of the great modders here will be able to figure out how to do this someday.