I know this is early pre-release software. My machine may not be super fast. But this game presently can become unplayable when frame rate gets low. I don't think it's the AI processing or pathing because it's slow even when paused. Probably graphics; it gets worse at high resolutions. But even at 800x600, zoomed in, it's barely playable for me. I can't find a FPS meter option anywhere so not sure how slow it actually is, but at around 8 or so frames per second one glaring flaw with the coding becomes clear: Mouse and keyboard events are only polled once per frame, and are not queued. It is not using official OS message click handling but instead is some kind of custom "is the key up?" "is the key down?" polling which loses events like mad. It makes trying to play at those rates extraordinarily frustrating. I got so fed up with it I ordered a whole new computer! ;)
Aside from that, I'm having a pretty good time with it. There are bugs but that's to be expected.