Orlando Canizales had some speed. DLH was pretty fast in his prime. But yeah, typically Mexican fighters are slow-twitch guys, not fast but can throw punches forever.
Who's that? I don't think he's fast. Not like Mayweather, RJJ, Gamboa, Rigondeaux, GR, Jr. , Dirrell brothers, etc.
salvador sanchez had speed as well, imo the great mexican 3 of today had speed as well, but not rjj or direll type speed. Besides the 2 guys I already posted odl is the man when it comes to speed, if you consider him mexican though.
had no idea that once they cross the border their entire genetic and hereditary structure suddenly changes, reversing millions of years of evolutionary progression.