Comment 30 for bug 207135

Confirmed here, too. Pulseaudio ate up to 50% of my 2.0 Ghz CPU, making both the video and the audio stutter in mplayer and totem. What's worse, you cannot stop pulseaudio daemon, and killing the process affects playback quality. The only solution is to completely remove pulseaudio from the system. In my opinion, if it's not fixed by the release it's better to disable pulseaudio by default.