@apps
It's definitely better in 3.10, but not 100% fixed. It looks like there's some lazy loading sometimes, which still makes timelines jumpy.
Not sure if it is my instance, wifi or Fedilabs, but since 3.10 more often I see eye symbols in messages, but no images. I have to open the message to see the images, and when I return to the timeline, images are starting to load there again.