I work building tools for ad optimizers, next step they take is to get an account for DFP and Ad exchange(Google) which offers better revenue, there are also other ad networks you can configure on DFP to boost revenue like PubGalaxy the thing is you need to take time to test each one or get help for a pro ad optimizer and these days all big publishers are using Header bidding, you can reach me alejandro [at] ialex.org if want more details.
