[Plugin: NextGEN Gallery] Snail slow image loading with.3 and .5

I had to manually revert from .3 back to .1 a few months ago because flash would not work at all. I tried .5 and although it technically works eventually, albums load intermittently and hang Chrome. SLower tha a snail and thumbnails missing Going back to .1 again as flash works fine there. Cannot see what would change functionality from .3 on.
http://www.saraaten.com/photo-gallery/haiti-jan-2012-missions-trip/marche-canard-to-laschobas/

http://wordpress.org/extend/plugins/nextgen-gallery/