KDE vs. gnome

Is it my imagination, or, after a couple of days, does KDE slow my system down to a crawl? I'm using Suse 7.3, on a Dell Inspirion 7000, with 750mHz clock. I type a sentence or a command, and then go make a sandwich... When I switch to gnome, it seems to hum along fine, (although i got a Microsoft style non-specific kernel error blue screen during the screen saver). -- regards, kambot -> http://medianox.net