check my post if it’s relevant to yours https://community.shopify.com/c/site-speed/low-site-performance-scores-due-to-enormous-network-paylo…
Topic summary
Merchants are experiencing significant drops in Lighthouse page speed scores (from 90+ to 75) due to large Shopify-generated JavaScript files, particularly app.latest files from cdn.shopify.com/shopifycloud/checkout-web/assets/.
Key Issues:
- Files appear to be core Shopify assets consuming 800kB+ of network payload
- Loading on every page, even outside checkout flows
- Merchants have no control over these files or ability to optimize them
- The specific purpose and utility of these assets remains unclear
Current Status:
- Multiple users report similar problems with checkout-web assets
- One response provided generic optimization tips (image compression, minifying CSS/JS, removing unused apps) but didn’t address the core Shopify files
- Community members are seeking official clarification from Shopify on why these large assets are necessary site-wide and whether they can be delayed or optimized
Unresolved: The discussion remains open with no official Shopify response explaining the files’ purpose or providing solutions for the performance impact.