Indoor camera was rough. Performance is rough. Giant tutorial text dump was rough. Camera wouldn't move until I brought up the f1 menu for the first time? Rock texture looked tiled as hell. A lot of textures actually don't look particularly good. The wagon near the fields entrance whose wood texture is filtered to hell ends up looking 10x better than the janky HD wooden stairs next to it.
Now the good. The grass obviously. Its great. Its a winner. I know it. You know it. We all know it. If its not the source of the performance hit, you need to back it up in 30 different locations. The farming is actually really engaging. Being able to just clear and area and start tilling a field is great. The skill system is also neat. I'm a real sucker for this kind of everquest/runescape/whatever individual skill leveling system (unfortunately it seems like the button to close the skill menu doesn't work currently).
If you can iron out the visual and performance kinks, it could probably be really great.