Speed up review widgets

Here it is some tricks to get better scores on website speed meters, like Google pagespeed, GTmetrix, …

1. If you are using many widgets on the same page, you can replace in the widgets’ code the script words to div. It is enough to keep the script in only one case.
2. Merge reviewers photos into one. Less request, less total image size.
   • This feature is available only in paid packages: “Widget edit” >> “Merge reviewer’s photo”
3. Show less reviews: For smaller widgets (like sliders), visitors only look at the first 5-10 anyway. If they are interested in more, they will look for the “About Us” (or something like that) section anyway, where they can read comfortably, and in large size.