Isotop on Thinkpad T60

Installed it on the little lappie last Friday, against my usual practices, on an un-encrypted HDD, just to take a look at it; another part of the ongoing OpenBSD tests I'm performing on my Thinkpads.
The Isotop install went smooth, it is basically a script that pulls and configures a bunch of stuff.
It looks rather cool out of the box, only thing I've noticed, it runs with a high load all the time... Haven't used it much, and I'm not sure I'll continue to run it, but that really caught my attention.