i was able to get this working pretty well on my i7 7700, seemingly fully playable, at 1080p, and 30fps. it looks great, the textures may take a little time to load, and it tells you in the left corner, but once they are loaded it performs really well. only played the tutorial area, nexus, and part of boletaria, but it looked great. the cool lighting looks awesome. some simple texture upgrades and this would be an easy remaster.
this is the guide i used for setting it up to be playable. at first i was seeing the menus but everything else was black. use these settings to get it working:
ps. i set the fps from Auto to 30 and checked Strict Rendering Mode to stop some strobe flickering i saw first in Boletaria that made the game unplayable.