Do you mean a more compact interface? In your user settings, under your theme selection, you can select how compact you want your UI. There are three levels:

1. Not compact - The default level for new accounts that expands the images/videos for those types of posts
2. More compact - Image posts are just thumbnails (like link posts) and no embedded videos, so all posts take up roughly the same amount of vertical space. <- This one is my favorite
3. Most compact - No images at all, everything is text.

As a curveball, you can try an alternative frontend and see if you can configure it how you like. Photon and/or Blorp might be more your speed, but I am not super familiar with their UI customization options.