there is a lag when scrolling through large docs, it shows blank pages until the images comes up it takes a few seconds. it's not very efficient when you are reviewing docs with another person live and you need to wait for the image to appear as you are not sure of the content until it shows up. i haven't had that issue with previous versions of the extension, don't know why it's happening right now, appears like some kind of buffering. i find it very annoying as it makes you look unprofessional