When I add an image addon to a page or any addon that includes an image, I always presize them to be as optimised as possible (ie; height & width are good for the addon in use). But when I look at SEO (I use RS-SEO) I often see pages scoring lower than I would like due to those images been seen as "Images without the 'width' and 'height' attribute".
Many addons don't have image size settings (ie Testimonial Carousel >> Carousel Items.
Any thoughts?