Unless you're wanting people to save the images on the landing page, please optimize the images. WebP and only as big as they need to be rendered.
If I go to a service designed around images and it's taking 5 seconds on a SOLID fiber connection to fully download, it doesn't give me confidence that I'm going to get a fast experience in the rest of your site (even if it's not directly related).
It’s a great point. I had been using BunnyCDN to optimize the images/serve as webp, but there are a few on the model preview page that I definitely need to shrink further.