Thank you for your review. About your suggestion: Please understand, that this extension is a content PLUGIN. It is by design working within the Joomla main content (i.e. an article). A fish does not need to get improved because of it's unability to fly ;)
To show a slideshow on a module position, please use an extension developed as a MODULE (plugins are marked with a small icon showing a "P", modules with an "M" in this directory). Doing so will save you a lot of time and help you to keep the structure of your site's backend clean because you do not need two extensions (the plugin and the module to display it) but just the module itself.