Also, what I get in terms of album pics, is that when I hit forward, instead of hearing some disk activity, and then all the albums on the next page appearing, the pics appear to be drawn 1 at a time, or rather the program does not wait to load all the pics for the next screen. So I'll see say 3 pics updated, disk activity, the next 6, a quick pause, then the last lot. This is all very quick, but very noticeable. I think its a lot better if the screen is not updated until all the pics are ready.
I admit, I'm sure some of the pics loading are probably quite large and some very very small (talking about file size) which may cause the (brief) pauses. Either way, speed is not an issue, it just looks nicer when they are all updated together, like you've turned a page or something. My opinion, anyway....