The latest mobile user behavior study jointly released by Google and SOASTA confirms a statistic that is critical for both e-commerce and content sites: when a mobile page takes longer than 3 seconds to load, the visitor bounce rate is 107% higher than for pages that finish loading within 1 second. The study also found that for every additional second of load time, conversion rates drop by roughly 20%; in mobile shopping scenarios, more than 70% of users say they will abandon a purchase because a site is too slow and switch to a competitor. This data aligns perfectly with Google's Core Web Vitals policy—Google uses LCP (Largest Contentful Paint, target <2.5 seconds) as one of its core ranking signals precisely because of the substantial impact speed has on user experience. We recommend that e-commerce and content sites immediately test their mobile scores in Google PageSpeed Insights and make reducing LCP to under 2.5 seconds their highest-priority technical SEO task.