I came across this firebase extension that looks like a really simple extension that would help folks looking to optimize image uploads for both bandwidth and storage saving...
https://extensions.dev/extensions/firebase/storage-resize-images
I implemented Twitpic myself, but may do this in addition to twitpic. I already limit size uploads in Flutterflow via the parameters FF gives you for image uploads, but the compression isn't great. This would allow me to convert all images to WEBP which I've found can save anywhere from 20-60% file size without losing too much quality.