Images take large amount of disk space on the server

Hello! I’m using Newspaper X theme for a long time and it’s great!
However I noticed that it takes a large amount of disk space on my server, My guess is that this is because of the way images are stored: when user uploads any image, 5 or 6 same images with different sizes are being stored.
Is there any way to avoid this and optimise disk space usage?

Hi there

This is how theme works, in different places theme uses different images to save site loading time, if you stop this then users will be not able to normally load the site, and loading speed will increase about 20-25%.
This is also built-in function and it needs a major modification to disable this feature