Hmm... when running the game on my end, I never seem to have any issues. Is there a particular spot in the game that keeps crapping out on you? That might be something that I've fixed in the current version that may still be an issue in version Severa.
That is also true. My machine at the time of this posting is relatively high-end, to be fair, so I can only assume it's something about CPU processing or RAM usage or whatever.
