Actually, if you do it "right", then it shouldn't take that long at all. Though, that does come with greater risks.
Also, I feel that the waves for "VoWG" Lunatic have slowed down considerably for me, hence the random capture after only 1 try today :V
To get you started, you start at the middle, and a little bit to the right. Move right slowly, making sure that the Enemy marker's center is to your left (i.e. you are still on the right side of it. Once you pass the 2nd stream on the (extreme) side, you make the circle, and repeat, remembering to watch for the circular waves of triangular bullets.
Figured out more of Syou's 1st SC. It's not 100% static, but more like... 70-80%. The other %age is aimed.