I just updated to PR 1.2. Seems smooth enough. Oddly, however, the CPU usage when playing music seems to have increased a bit (top says it's ~70% idle, whereas with PR 1.1 it used to be at ~75%). And also the music player itself seems to miss a frame when scrolling the 'Songs' view at regular intervals (3 seconds or so), which I find strange since it was very fluid before.