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I read your problem and it seems that I need to analyze your website to provide the solution here.
Would you please share your website URL and if your website is password protected then also provide the password.
Lazy loading means deferring off-screen/below-the-fold images from loading until they come into a user's view.
The benefit of this is that your images are now only being loaded as they're needed. You don't need to load all your images upfront during your website's initial load. This can really help improve site performance, especially if you have an image-heavy website.
We have a more in-depth article on the topic that can help walk you through how to implement lazy loading on your own: How to Lazy Load Images on Shopify to Make Your Site Faster.
If you need any additional help, feel free to reach out to our optimization team at speedboostr.com/contact. Best of luck!