3% impression → page-view rate means your icon or subtitle isn't selling the click. Average is 5-7%. Test one of: (1) icon redesign with one strong visual element, (2) subtitle that says what the app does in 5 words, (3) screenshot 1 with a hook overlay. Change one thing, run for 2 weeks, measure.
My App Store listing gets impressions but only about a 3% tap-through, below the 5-7% average, so my icon or subtitle isn't selling the click. Suggest one strong-visual icon concept, a 5-word subtitle that says what [app] does, and a hook overlay for screenshot 1. Pick one change to test for 2 weeks.