How can I restore the my (work) PeeCee's speed?

[Bimwad]

Unfortunately, defenestration is not an option. I'm limited to what I can clean up in software, and I certainly don't want to hassle of having to reconfigure the machine after a wipe.

I think physical RAM is an issue, especially if Chrome is running, but the thing seems bogged down even after a restart, when nothing's running.