Thanks for the feedback!
You can press escape to close all windows right now, and we will be implementing keybinding soon.
Regarding pace, as /u/Sartuk said, the rate of gaining skills, experience, and items is highly accelerated for the demo so that players can get a feel for the gameplay and character customization. The rate of progression will be slowed down drastically for the final game.
There are multiple difficulties, if the demo is to easy try a higher one!
Performance is something we are actively working on, and we have made some very significant performance improvements in the past couple patches. Performance issues aren't the fault of Unity, but because Unity is such an easy platform to develop on, a lot of poorly optimized games are made with Unity. We've also only recen...
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