Hey, thanks for playing and posting the vids. Its been interesting watching you play, and it helps us find flaws in the gamedesign. We are already talking about how to improve the design, based on your video.
Hey, sorry to hear the game is not running well for you :(
I'm one of the developers. If you haven't already, turn down the settings ingame. This will disable shadows and lower textures and such. Beyond that there isn't anything we can do without altering the the backend of the game. Sorry