I undestood a bit, but use English mostly as is't most commonly used, depending on your mac hardware is what really framerates you will have, BG3 is a beast in terms of graphics and more importantly, processing power, i've always admire Mac's stylish looks, but I just don't like that it's so difficult to install and modify your own files :P, check your options, maybe you can squees a little bit more of framerates, game's really optimized for it being an alpha only, the full release SHOULD have better performance!, also, just wait for release, don't burn yourself with arc1
