Title should be (Nightcore Mix) instead of (Sped Up Ver.) because the song is techno/dance/electronic genre.
I would really consider adding at least "Perfect Day" to the tags, which is the name of the album.
Song genres would also be cool, since Electronic doesn't cover it enough for that specific case, and the genres I mentioned above are all related to the Nightcore remixed songs in the entire internet/game.
Adding tags doesn't hurt, it only helps, so I really don't see why not.