Re: I did a little experiment and compressed a massive amount of files
If you are a typical user, your disk is slow and badly fragmented and compressing a "massive amount of files" leaves the CPU mostly waiting for seeks.
Find a large file, that is hopefully reasonably sequential on the disk. If you've ever had a power blip or a software problem, you may have a .dmp file in your windows directory, there should be some big .dll files in your windows directories, too.
Open up task manager, click on peformance, then go to that large file it should be a couple of meg, at least (a couple of hundred meg will let you really see) and start compressing it.
Let us know the results you get.
I won't call you names - unless you do this sort of evaluation as part of your job every day, it's easy to miss just where the bottlenecks are.