Re: Too much cc?
@poobear1 That depends more on the type and size of the cc files, as well as your computer's specs. There are players with powerful gaming rigs that have 10 GB of cc or more without a serious performance hit, and other players with older computers who have to keep their cc folders much smaller. If you mostly added clothing and hair, you might notice significant lag (or even crashing, on lower-end systems) in CAS, while build/buy could be unaffected. Some cc items, particularly high poly count hairs, are much more demanding on a system than others.
If you really want an expert opinion, it would be best to post at MTS or another site that discusses custom content in depth and can give you some idea of the performance hit you might expect from your added cc. You could also ask about techniques such as converting cc items into package files and merging them, which can help your game run more smoothly. But help with third-party content isn't the kind of thing usually offered here.