Good to see an intelligent streamer every now and again. You should have no problem being top 10 in pa too when you get used to it. You need a good build. Dox won't cut it against 95% of Uber players. I see you mentioned about building energy storage in another thread. The problem with your build is you have 2 fabbers expanding metal and use your commander to build energy. It's better to have first two expanding like you do and build a 3rd fabber that builds energy for the whole game. You will see a big difference in your results then. Best is just copy one of the top 10 players builds, building for building and see how you find it. So when you get used to a build you can focus more on what to do with your units than what to build with them.
I've been absent because of school. I'll be streaming more PA in the future. Right now streaming some SC:FA www.twitch.tv/lextocinator