You can get an early indication of ad performance using early warning metrics in Google Ads. Impressions Top, Absolute Top and Average Session Duration can help you triage low performing ads and boost high performing ones.
Learn how to use PPC experiments to optimize the performance of your Adwords campaigns. In this dental case study we lowered our cost per conversion by 15% and improved our overall conversion rate by 7 percentage points, squeezing more leads our of our budget.