Alright, two things going on here:
I’d like to figure out what you mean by caching a larger number of images. If images stop appearing, I need to know about that so I can fix it. Let me know, give me a screenshot of it not happening, and let me know approximately how many stories you’ve scrolled past and what view they stop appearing in. Is it in the previews, or is it an actual feed itself? Or are you in the story view or the text view, etc?
Next, I want to talk about this idea itself. You want to have the image below or above the content. I think I’ve seen other feed readers do this. I don’t really love it, but it’s not the worst idea. Maybe I’ll expose that as a preference.
Are you saying you want me to take the image the author has put somewhere in the line in the feed and placed it on the top? We already do this if the publisher has included the image as a media enclosure. We already added it and have actually just fixed issues where we were accidentally duplicating it.