MeshCore runs at 2.73 kbps and it can send a short text message in a fraction of a second. The short turbo preset on Meshtastic is 21.88 kbps, but that’s still too slow for images. The higher speed reduces the range by quite a bit too.

For images, you would be better off using WiFi HaLow, which runs several mbps on 900 MHz.

If you have a ham license, there is HamWAN and ARDEN as well. They are fast enough to stream live video. They can work over long distances, but the high gain antennas have to be aimed carefully.