Hi Jer,

no there's not a way of showing only albums.
Embedded album art are "simple" but sometimes problematic (you don't know anything from the file etc) thus sometimes the code can fail. We will improve it over time.. but it will continue to fail when facing odd sizes, and AFAIK we don't support quite well the latest version of ID3 tags (2.4 if I'm not mistaken)

About the 5 minutes : what size of card do you use? and... do you asked canola to "check" whole disk and all 3 medias?

It would speed up a little if you choose only the specific folder for each.

Anyways, What device are you using? Reading from memory still a little slow in the tablets, but I think this will improve!