It runs all sorts of other games just fine. In this one the character only move one or two fps. I used the download from the website to get a copy. When I try to launch after install from the itch app, it says "Error: spawn EACCES".
Sorry for the late reply, and sorry to hear the game doesn't run well on your machine - I know how frustrating that can be. Itch doesn't have a refund system, but if you contact me at jesse[at]a6productions.com we'll sort it out.