Large images slow to load in Data Manager

**Is your feature request related to a problem? Please describe.**
Is there a way to cache large images so they load quicker in the Data Manager? What is displayed in list view is basically a thumbnail of the original image anyway. It seems like it would make sense to cache these or at least store them in a directory for fast retrieval for the next time. I've attached a screenshot so you can see; many of the images are still loading.

**Describe the solution you'd like**
Save these cached thumbnails so they can be retrieved for later.

**Describe alternatives you've considered**
The only alternative I know of is to turn the "image" column off completely; then scrolling is without delay.

**Additional context**