Issues while using the internet explorer 11

The slider images and text is zoomed out of the container and you just see a part of the image.
I think its a javascript problem while detecting the display viewport or something like that but I dont now how to fix it.
I use wordpress 4.3.1 and the plugin with version 2.7

Thank for your help!

https://ww.wp.xz.cn/plugins/ultimate-responsive-image-slider/