Actually, it seems this rom is run unthrottled with no vsync? so everything happens in fast forward. compare to [jzIntv](http://spatula-city.org/~im14u2c/intv/) or OpenEmu/Bliss using this "80s style" demo scene rom [spirit1_0.zip](https://github.com/libretro/FreeIntv/files/1971532/spirit1_0.zip)