Couple of days back, I played around with pulseaudio modules, sources and sinks and all that stuff (Obviously not knowing what I was doing). Few days later, I noticed that video playback from youtube (or any audio visual content) started to become choppy and slow often to the point of audio getting out of sync very quickly. I wasn't sure what the cause of this problem was. I initially thought my CPU was stepping down due to the heat. But it turns out that it was my screwed up pulseaudio config.
Doing `rm -rf ~/.config/pulse` followed by `pulseaudio -k` (kill the pulseaudio daemon) instantly fixed this issue.