That and a lot of music I have found on there has a music video version of the song which can sometimes be slightly different than the original song. It's usual

That and a lot of music I have found on there has a music video version of the song which can sometimes be slightly different than the original song. It's usually something like a longer intro before the music starts or something like cheering from a crowd or whatever to mimic it being a live performance music video. So you're getting a subpar sound quality combined with a sometimes differing song from the original.