Hello,
So unfortunately, you can only optimize things that you can control (on your site, on your server). Unless the PharmaShop shortcode has some feature that allows one to request a specific image size (upon the pull).
Likewise, with the ReCAPTCHA image, that image comes from Google and Google’s servers, and even with invisible ReCAPTCHA, the badge still contains this image. You could try an alternative form of CAPTCHA if it’s a huge issue, but it’s really the Pharma images that are dragging on the site speed.
