Hi again, a little update here:
After having tried a plethora of slideshow and image gallery products I decided to work with NextGEN Gallery. The Free version is pretty complete and the gallery looks perfect on all mobile devices. Whats sucks is that it messes up my websites URL http://example.com/our-teak/nggallery/page/9
As you can see it adds a “nggallery” to the link. I don’t like that product and software-names are shown in my links, reason because I eliminated all signs of WP in links. Unfortunately I haven’t found any solution so far for this issue.