GeForce GTX 1080 not processed!

As Mylenium said, AE only renders certain effects on the GPU. Most work is done by CPU, still.
For AE, you'll need the fasted CPU you can get and the most RAM possible and all the other stuff is nearly irrelevant.

*Martin

You seem to have a wrong idea on how little AE actually uses GPU features and how specifically at that. What you see is pretty much the norm. There is no way around that. I would suggest you educate yourself about this stuff by reading the help, doing a web search on the trillions of posts on "performance optimization" and how AE's rendering pipeline actually works and so on.

Mylenium