Hi there,
My levels were fairly similar to yours when I started. I am coming up on 1 year on T and I am very happy with my masculinization. I can't say that it's been faster or slower than guys without PCOS.
I personally haven't had any change in metabolism. I didn't get any increases in appetite, and my energy levels are about the same when I'm not otherwise fatigued (I have fibromyalgia as well). My libido has decreased, but based on what I've read, I'm an anomaly in that case.