Too slow doesnt let me make Payments easily

Shopping part is great, slow and seems a little cheap quality of a site, but gets the job done. However, it does not let me make payments on my credit cards easily which makes me mad because my card has the possibility of "charging interest" randomly. I want to say it seems shady... But I think its just a cheap site.

Haybnova about Banana Republic: Shop Apparel, v3.1