The easiest solution would be to hide those by adding this code in Appearance > Customize > Additional CSS:
.dlm-xhr-loading-gif, .dlm-xhr-progress { display: none !important; }
This will hide the progress values and the loading GIF.
For something more complex you would need custom coding and the help of a developer. While we do not offer custom coding services at the moment, there are other places you can find the help you need.
We recommend https://codeable.io – this is a platform where you can find vetted WordPress developers for custom coding work.