Slideshow appears small

The title says it all. The slideshow appears tiny on my website for some reason. I also don’t want to manually edit the CSS as this is supposed to be responsive on the website and I feel it will mess with some of the internal workings of this plugin.

Screenshot of how it looks on my website: http://gyazo.com/2f41f74a4d2501cfcf8ffb0dca40d099

Here is a screenshot of my display settings: http://gyazo.com/40493c0be77b820e1d6f8ed508810afd

https://ww.wp.xz.cn/plugins/slideshow-jquery-image-gallery/