Is there a way to preload images when labeling?

**Is your feature request related to a problem? Please describe.**
When multi people labeling for a same task, the image loading is slow, is there a way to preload a few image when labeling?

**Describe the solution you'd like**
preload a few images

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.