mobile-apps, advertising, app-store-optimizationI repeatedly get very low requests to impressions ratios (currently about 8%). I think I am doing something wrong with the ad configuration in the app. I run an interstitial for two events. Any advice on rectifying this would be very helpful.

Of course, you'd like to answer these questions with real validated data. Not just a hunch or guess. Think of experiments you could create to answer these questions.
This is a great chart from the Value Proposition Design book: 
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