A lot of free Vickie clothing stuff depends on the Vicktoria Clothing Pack I by DAZ. I recommend buying that (or the morphing version), a lot more free stuff for Vickie clothing will be usuable to you. Next to that, you can edit the objects yourself and create the clothing you want. As for your PC speed, please state your PC technical info (speed, memory, HD). It might not be suitable for using Poser as it absorbes most of your PCs resources...