Dark_Angel85

IMO i don't think that the theme has got anything to do with hildon-home
But you may wanna know that i'm using blue-sky theme with humanity icons
and the transitions in patch.tar.gz (the same transitions for theme-customizer- the old one)

And as i said before the problem might be from a widget(s) causing lags to your hildon-home

if you didn't find a solution try to use optimize n900 script
download and install from
http://repository.maemo.org/extras-d....1-0_armel.deb

or directly from application manager
or

sudo gainroot
apt-get install optimizen900