The UI still needs a few adjustments, and yes the minimap cannot currently be enlarged. Foods right now are all the same, but the devs plan to give the player buffs if he keeps a correct nutrition. Health recovery is not an issue with bandages, while mana recovery is indeed a bit harsh at the start. You can gain mana regen with talents and by enchanting your armor. I sometimes get a crash, but never so many times in a row. Usually once every 2 days.