Speed Optimization Test

Optimize first on sandbox/staging, not directly on live site. Pages: panstellar.shop and especially panstellar.shop/products/stack-157 Goal: pass Core Web Vitals / no red mobile score / clear before-after improvement. REAL OPTIMIZATION ONLY. NO FAKE TRICKS: PAGESPEED CLOAKING, LIGHTHOUSE BOT DETECTION, USER-AGENT EXCLUSION, HIDING SCRIPTS FROM PSI, DELAYING ASSETS ONLY FOR TEST TOOLS. DO NOT APPLY IF YOU HAVE NO REAL SPEED OPTIMIZATION EXPERIENCE, LITTLE EXPERIENCE ON YOUR PROFILE, MULTIPLE JOBS IN PROGRESS, LOW AVAILABILITY, OR CANNOT REPLY TO OUR EMAILS WITHIN 3 HOURS MAX. DO NOT SEND A LONG COVER LETTER OR GENERIC FORMATTED PROPOSAL. ANSWER ONLY WITH THE LIST BELOW. If successful, we have 20 more Shopify pages to optimize.