Decrease Fablet's load time
By default, Shopify apps load after the page is generated. If you'd like to decrease the time it takes to load the app, follow the instructions below.
1. From your Shopify admin, click Online Store, then click Themes.
2. Find the theme you want to edit, click the Actions button, then click Edit code.
3. Click on the theme.liquid file that's located in Layouts folder.
4. Paste the following code snippet after the <head> tag.
<script src="//d3enctq8nuu8g4.cloudfront.net/js/detect.js?l=1&u={{ shop.permanent_domain | split: '.' | first }}"></script>
5. Save your changes.