Hi there.
Glad you reached out to us.
I viewed your homepage and saw that the image blocks you used is the WordPress Gutenberg Image block.
WordPress images have srcset attributes. The image URLs for these attributes helps the browser choose the most appropriate image size based on the device’s screen resolution and viewport width.
For example – an iPhone 15 device will have a screen size (resolution) width of 1179px. If your image is 2000px in full size, it would make sense to load the image file that is nearest or has the best quality for the iPhone width which is smaller than the image full size. The full size image URL will not be used as it will affect your page performance.
Overall, this is not something our theme can control. Test changing your theme temporarily and you’ll see that the same image URLs will be used for smaller screens.
I also don’t recommend not using the WordPress srcset attributes. However, if you’d still want to do that, here’s a post that could help – Remove srcset in??WordPress
Add the code snippet using a plugin – https://www.kadencewp.com/help-center/docs/kadence-theme/how-to-add-a-custom-filter-or-function-with-code-snippets/
I hope this clarifies and help. Let me know if I can help you further with this.