Choosable environments
I noticed that the game performance other then the video settings also greatly varies depends on the actual look and feel of the table environment.
For instance, the desert looking environment causes some lag but in some less animated environments the game runs perfectly smooth.
It might be a nice idea to make the environment choosable by the player.
This would even open up some possibilities for launching an entirely new esthetics where players could buy unique environments, while others might optimize it for performance buy choosing a less animated environment.
for example I always preferred playing on a wooden table with torches providing the light... why not make it possible for me to buy it and play in such an environment or maybe if I want to reduce the impact on my system I would choose some plain less animated environment.