1.
Magento 2 Defer JavaScript extension: speed up Magento 2 websites quickly by delaying JavaScript loading till the last moment after all HTML and CSS. In addition, this module also defer Iframes effectively to enhance site performance.
Let's see the result generated by GTMetrix after installing Defer JavaScript:
And this is the situation before installing:
2.
Magento 2 One Step Checkout extension: simplify checkout steps in one page only. All information is displayed in one checkout page and customers can easily complete more quickly. + Auto detect location and autosuggest as well as autocomplete customer address
+Auto update information when having changes
+ Support multiple payment methods
+ Allow selecting delivery dates and times for orders
Check it out for FREE Installation, FREE 1-year Support and Updates!