You clearly didn't read my previous post properly. I have the same number of photos as I did with FTM2012 and am using the same computer as I did with FTM 2012. The details are totally irrelevant. It is MUCH slower with the new 'upgrade' than before.
Anyway I've given your comment some attention and have scrolled right through my media at a speed (if you can call it such) that the software can permit (took me over 5 minutes to 'scroll' from top to bottom. Fine. thumbnails loaded, so now we're away and running ... let's scroll back up to the top ... oops, software overload - can't cope with this - need to stop periodically to load more thumbnails.
SOFTWARE FAIL. THIS IS CRAP!!!!!