In order to manage performance marketing, the main ingredients are structure and overview. You need to have an overview of all running activities, such as campaigns and all strategies in a campaign.
Via an online real-time dashboard, which shows the actual numbers of the leading metric systems, you create a direct overview of what is running and how it is performing. The dashboard gives direct insights which campaigns/strategies need to be optimized and what else needs to be optimized (such as results, ROI and pacing)
If an online (real-time) dashboard is not feasible, another managing solution is to create a document (for example an pacing overview with the most important metrics, such as CTR, eCPM, eCPC, eCPA and spent budget. Update this document on a regular basis (like two or three times a week) and optimize the campaign towards the campaign objectives based on the metrics.