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# You Are Serving a 2400px Image to a 390px Phone
- URL: https://debugly.dev/shopify-image-srcset-oversized-mobile/
- Published: 2026-10-09T11:03:00.000Z
- Updated: 2026-10-23T09:12:54.000Z
- Description: The srcset was correct and the browser still downloaded the largest file. The sizes attribute was lying, and almost every theme I audit gets it wrong.
- Author: Rohit Bhadani
- Tags: Shopify, Bug Hunt, Performance, Ecommerce

|                      | Before | After  |
| -------------------- | ------ | ------ |
| Image bytes          | 4.1 MB | 480 KB |
| LCP                  | 4.6 s  | 2.1 s  |
| Requests over 200 KB | 14     | 0      |

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Published on [debugly.dev](https://debugly.dev/) by [Rohit Bhadani](https://debugly.dev/about/) | Founder of [Krova Cloud](https://krova.cloud/?ref=debugly.dev)