This is the checklist version. If you do not know why the store feels slow, read why is my Shopify store slow first. If you want the reasoning behind the order, read how to speed up a Shopify store. Use this page when you already know you will work through items.

Last reviewed: September 2026.

Quick answer

Measure three mobile pages. Remove unused apps and duplicate widgets. Compress the first image on each of those pages. Then turn off unused theme features. Only then edit Liquid. Do not install a speed optimiser as step one.

Checklist steps for Shopify store speed on mobile
Apps and media first. Theme code last.

The checklist

# Check Done when
01 Pick URLs Homepage, one collection, one product, cart if you can
02 Measure on mobile Lab report plus a real phone walk
03 Write down LCP element You know which image or block is the large paint
04 App uninstalls Unused apps gone, not just hidden
05 Duplicate widgets One reviews tool, one popup, one chat
06 Hero media First image compressed, not a video unless you need it
07 Product gallery First image eager, extra shots can wait
08 Fonts Two families or fewer, no extra weights you do not use
09 Theme sections Unused sliders and marquees off on the homepage
10 App embeds Theme settings: unused embeds disabled
11 Tags and pixels Marketing tags you cannot name are removed
12 Layout shift Announcement, reviews and sticky bars do not jump add to cart
13 Re-measure Same three URLs, same device class
14 Theme code Only if 01 to 13 still leave a real problem
Screenshot needed

Google PageSpeed Insights (or our page speed test) for a Shopify homepage on mobile. ALT: Mobile PageSpeed report for a Shopify homepage showing LCP opportunities.

Notes that stop people skipping steps

Step 02 can use our page speed test or PageSpeed Insights. Lab scores are clues. A mid-range Android in a lift is the real test.

Steps 04 and 05 are where most stores get their first win. We wrote a longer piece on apps that slow a store. For Core Web Vitals names, see Core Web Vitals without guessing.

Do not host the Shopify shop on Hostinger to “make it faster”. Shopify already hosts the shop. Hosting advice is for company sites in what web hosting is.

Want someone to walk this on a live theme?

NP SoftTech can audit apps and templates, then change what loads. Share the store URL and the worst page on a phone.