@liz Thank you for your question. As you have spotted each page on the website has 12 housesits before you have to view the next page. There is no current option to view more per page, but feel free to add it to the suggestions thread:
If you download the app, you see one at a time but can continue to scroll down the list, so that might be a helpful option.
Let me know if you have any more questions or need anymore help at all.