Performance
If you are using this plugin in your existing website for App, then you need to regenerate the thumbnails of the existing images. To regenerate the thumbnail, refer to this Important Suggestion. It is because we have specified and used the separate size of thumbnail images for App to maintain higher performance and image quality.
iOS and Android App
As WooCommerce has high-resolution images, if we load high resolutions images then the performance will be down. So we recommend you use above mentioned plugin and Crop the image.
As well for app side are doing Image Caching for improve performance of the application. We have used “SDWebImage” for image caching in iOS and for Android “picasso”. We have also mentioned this in Source and Credits as well.