I have an EeePC 1201n that has a pretty descent graphics processor (Nvidia Ion), but I was still noticing a little bit of sluggishness with KDE’s KWin desktop effects enabled. Things like minimizing or switching desktops produced minor little hiccups. Overall, it was still fast, but it was enough to make me try some different settings.
I happened to like QtCurve (style and window decorator) anyway, so I compiled the latest version and installed it. As soon as I started using the window decorator, replacing the default Oxygen one, poof, instant speed. The response time is excellent with absolutely no hiccups at all. Is QtCurve just that much faster than Oxygen, or did building it from source specifically for this hardware make enough of a difference to increase the speed?
Either way, it is smooth sailing from here on out.