Hello,

First of all thanks for choosing our Theme, we are glad to be you in the WoodMart WordPress family :-).

The serve scaled images means that the image used in the website is being cropped from its actual size when used in the website.

This is something not related to the theme.

You can read the following articles to know what is serve scaled images:
https://www.hostinger.com/tutorials/website/improving-website-performance-serving-scaled-images

https://gtmetrix.com/serve-scaled-images.html

Best Regards.