Thanks for your feedback.
We expect users to dial down on usage info with our “usage” screen. Go to the top right of the usage screen, then choose the “Month” pull-down menu. Now choose “Custom” and you can break down traffic by day, week, etc… and see detailed host/app info.
We designed the graph to quickly see your network history in a graph view, but if you want to really break it down in detail it’s much easier to use our usage screen.
Meanwhile, for the graph we are working on a mode that show more of a sharp graph for people who need a more defined graphical accuracy.