Jon Phillips of Matchless Web Studio shares how Polypane cut his mobile optimization time in half. As a solo WordPress performance specialist, he struggled with inadequate breakpoint previews in page builders. Polypane's multi-viewport preview saved him 3-4 hours per project, and he also discovered its Core Web Vitals integration — which lets you check vitals across multiple device sizes simultaneously, something Google's own Lighthouse and PageSpeed Insights can't do.
