So I have seen people using the Vocaloid 6 Engine with new Vocaloids. However, I got annoyed that Vocaloid 6 has awful engine noise as well as the time of rendering. I used Vocaloid 6 Trials and it still annoyed me. Can someone explain to me why it has that "engine noise" while Vocaloid 5 doesn't have it much? (although you can still hear it a little)