I have working on a music video, but I have been having issues with syncing the audio with the video. The footage that I have involves the performer actually singing the lyrics, sometimes slightly faster or slower, than the audio track we will be using for the video. I have been attempting to tweak everything by hand (lining up the video with the audio; slowing down/speeding up the video to match the audio) and it is incredibly time consuming.

I'm currently using Pinnacle Studio 14. Is there a plug-in that help in this situation? What about another application?