Wel-l-l-l-l, this is the first time I've heard of it. I don't see anything in Google that matches this usage, so I would assume this is some sort of homebrew (by LP) optimizer, and not a commercial product. If so, with the lack of information (I see nothing in the Wiki or elsewhere on the site than what you pointed to), personally I would be a bit reluctant to entrust my site to it. I suppose you could make an offsite backup, sic Web Optima on your site, and then download and compare the original and modified sites, to see what kind of things it does. From the CAP short description, it seems to have something to do with compressing images and some page caching and compression (which would be server settings rather than changes to your files). That doesn't sound like anything a reasonably competent developer couldn't do themselves, but maybe that's not the target audience. Maybe someone from LP familiar with it can speak about it.