ZeroNet Website Size Limit

Hello. A quick question. What is the website size limit? I want to make a content-rich Video Portal where I integrate Webtorrent streaming into a ZeroNet website. I imagine the size of the website will go FAR beyond 20MB eventually. I think it would become a few Gigabytes eventually due to High-Quality images. Would this become a problem years down the line? Or updates be so incremental that regular users will only have to download the incremental updates when the site is updated?

If a new reader visits the website when it is eventually over 1Gig, would they still be able to view the site while the site is downloading the rest of the content?