> For the complete documentation index, see [llms.txt](https://imageoptimizer-docs.secomapp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://imageoptimizer-docs.secomapp.com/why-does-the-compression-take-too-much-time.md).

# Why does the compression take too much time?

Normally, it takes **30 seconds to compress an image**. Although it may also depend on the image weight. If the image is too big in the size, it may take a bit more time.

Even if you have a few thousands of images to process, don’t worry! Once you executed an action on the app, **the app will run on the background** even if you close the app or close the Shopify admin panel. 

When the task is done, there will be an in-app result in the [History tab.](/others/how-to-check-the-image-size-after-optimization.md)