This is half decent actually, you seem to understand the basics behind sync
One thing you can improve is your freecam, currently it keeps zooming in and out of the tori and it's really distracting to watch
As Toriito said disable resample on your clips, it helps to get rid of that effect that SV automatically adds on to your videos which looks ugly. You might want to replace it with RSMB (ReelSmart motion blur) if you're bothered enough to get it