Thanks for comments Lars S. Sabrina H.. My recommendation is definitely to switch from 'data points' to 'indicators' to 'trends and stories' as you go up the hierarchy. Going into a Boardroom with lots of data is asking for trouble, they'll select an outlier point and quiz you on it until you can't answer, then they'll disregard the whole lot.
Choosing 'what matters' is always a challenge - but you know your business and what matters. Is it uptime, safety, product design, price, reputation etc? Find the key aspects and then see how you can relate your metrics to those.
I did a speech to the SoSafe Virtual Academy a few weeks ago which touched on this topic, and included some examples. I'll be posting that in the community in the first weeks of October.