Performance of nextcloud text with images

in a NC text markdown document, we have currently 24kb of text but 100MB of associated pictures. Now very often NC text loses connection, messaging ‘file could not be loaded’. This is very annoying, as after reconnect, NC text gets opened at the beginning of the file. We use it as a diary so must scroll to the end again.
Is it thinkable images throttle down NC text in such a way?