If your Magento site is performing very slowly, you should check the site speed by using some tools like GtMetrix, Google pagespeed Insights and so on. Then, you can have a detailed analysis about why your site is so slow to find a suitable solution.
One of the reason you can see is the JavaScript issues that should be optimized to improve site performance. Therefore, Defer JavaScript extension is developed to reduce loading time and speed up Magento sites effectively.

- Defer JavaScript till the last moment until HTML and CSS loading is finished. The following image is the result generated by GtMetrix after the site is installed Defer JavaScript:

Name: magento_2_defer_javascript-after_installing.png Views: 8 Size: 15.0 KB

- Defer Iframes effectively

- Improve site ranking on search engine because fast speed is also an important factor to evaluate ranking.


Check it out for FREE Installation, FREE 1-year Support and Updates!

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