I do have a separate folder for CAW with a small amount of store content in it. I suppose that could be causing my issues as well, but if I can't use the store content in my worlds then I don't care about making one. That's part of the reason I want to create my own so I can have everything I want without needing to add it…
I do have Kaspersky Anti-Virus. I haven't had any issues in the game with lag or freezing. I don't play for long sessions but I have quit using CAW because EIG crashes constantly.