Live Face App too late and not synchron

Hi we try to make with live link ios app a singer who is lipsync with the song but feel, that this isn’t easy. The LiveLinkFace App is cool for quick demos but when we try to be really lipsync the animation of the face is ever too late, so you feel, this is not the solution, because it looks wired…

So my question is: Is there anybody out there who tries to be lipsync with a song in an audio file and have any ideas how is a good pipeline for this? e.g. move the recording about x milliseconds to the left or something like that.

Sorry I cant show Movie because of copyrights…

Best regards, Reini