Just installed 1.2 and can confirm that startup times are definitely improved and shutter lag/blackout times seem quicker. Behaves quicker frame to frame, so happy so far. On 1.1, I was frequently seeing weird behavior when I would press the playback button, seeing the gridlines, histogram, and shooting information, like I was still in shooting mode but with an old photo in the EVF. Hopefully these bugs have been addressed in this firmware too. 1.1 felt like pre-production firmware to me.