Report graphs too small, can't resize to see details

Report graphs too small, can't resize to see details

I'm trying to get a report for number of active users per hour on Exchange for last week over a 5 day period. But the graph is far too small, and I don't see a way to expand it to see hourly (or even daily) data. And when I export it to PDF, it looks exactly the same.

The polling of that monitor is 15 minutes, so how can I make this report larger and more detailed?

(Attached screenshot of report)




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