We implemented a new shadow system that costs very little in terms of performance which is why it is now forced. The main issue is that our game is still somewhat CPU limited, and this effects higher spec systems more than low spec ones. We still have much work to do when it comes to optimisation, but as I said, we are committed to this task, even if it takes us some time to complete. And regarding PP, please remember that nothing we add is final, and we are using the Early Access period to test and get feedback on anything we add to the game.