https://github.com/magesuite/lazy-resize/tree/4.x
The module adds the possibility to lazy resize images.
Installation
This module is part of MageSuite metapackage
Optional installation when metapackage is not used
composer require "creativestyle/magesuite-lazy-resize" ^4.0.0
Admin settings
Admin settings can be found in Stores -> Configuration -> MageSuite -> Images
The functionality is disabled by default when the module is installed.
Backend
Backend documentation and general review is needed.
Frontend
lazy-resize/etc/view.xml
<images module="Magento_Catalog">
<image id="product_page_image_large" type="image">
<width>1000</width>
<height>1000</height>
</image>
</images>