Ya'ver drink Brazilian bold from fkn dunkn donuts!
There are some technical limitations with MGR, the most obvious one being limited to 1920x1080, with no option to go any higher. That being said, it runs insanely smooth on a 2500k and 760. Should Platinum release an update I don't think there'd be much of an impact as there isn't a huge amount of geometry in the levels, as most of the attention is spent with the main characters.
Impressively, the cutscenes are very high quality, the look like they've been lifted from the PS3 version of the game as some of the models are exhibiting aliasing not evident in game with the PC. That is very much where the bulk of the 25+ gb install data lies.
Game is hella fun and very Platinum games.
In game screenshots