I'm attempting to optimize the images on my site to improve page load speed.

When I run it through Google's page speed insights program, it gives me a list of images that can be compressed. Several of these are BMZ cache images.

Should I optimize these images? Or will they eventually be replaced by their originals? If so, how do I indentify the original image (since the BMZ Cache file name doesn't seem to bear much resemblance to the original).

Thanks,

John