How about re-timing some songs in serious need?

Some of the songs are timed very badly. (And don't tell me it's just because I suck at getting beats... I can get a perfect combo in MANY songs) but there are some that when you play it's not timed to the beat, or to the music! It Feels like the steps SHOULD be fitting in, but they are maybe a 1/2 beat off place (resulting in a good, or a just miss) when they shoudl be in specific points. Maybe it's just my computer... I doubt it though as most songs are perfectly timed.

some examples:
Euphoria
Salad for your Tuesday
Massive