Been testing that if you focus on the key metrics you can find quick wins. Saw a 25% lift in conversions just by analyzing click-to-lead ratios and dropping the dead weight offers. Paid attention to the bounce rates and user flow data from GA4 and restructured the landing pages accordingly. The result was a 12% increase in PPLs for the same ad spend. Don't take every stat at face value, dig into the details and optimize accordingly. It works if you know what to look for.