I agree with you, this game is amazing, wonderful and I love almost everything about it, and even with the current endstates this deserves all Goty Awards<3.
But the endgame and endings made me sad(but for the wrong reason, I was sad cause it felt... incomplete compared to the rest) especially since I did not want anyone to turn in to Illithids... and I wanted Orpheus freed.)
Also the performance... I agree 100%, until Act 3 I played on ultra with atleast 60+ FPS, with some occasional fps drops.
Act 3 the drops were constant and down to 12 fps... and my rig is no joke.
