Any way to increase Admob Banner CPC?


After reading articles, I see that there are ways to block low CPC banners by blocking advertisers URL, but how can I find the Advertiser URL? Any other tips on increasing CPC? or blocking lower ones? 90% of my banners are 0.01$.

I have around 5,000 Impressions / Day
CTR is 2%
So far app is 10,000 Downloads

Thank you