[Plugin: Flexi Quote Rotator] Quote height and external JS suggestion

Would it be possible to be able to alter the size of the height of the rounded boxed that the quotes are displayed in (without me having to create a new image file and uploading it I mean)? At the moment they seem to just be fixed dimension images.

Also, would it be more efficient if the quotes were put into an external JS file somehow, rather than having to load all of them on every page. Ideally I suppose they only be loaded when someone visits a page that actually displays quotes.

Overall though, a nice plugin ??

https://www.ads-software.com/extend/plugins/flexi-quote-rotator/