A regional service called Amazon ECR is meant to allow you freedom over how pictures are delivered. For optimal speed, you can upload and download images to the same AWS Region as your Docker cluster. Additionally, you may access Amazon ECR from any location where Docker is installed, including desktops and on-premises settings. Images pulled from other Regions or the internet will incur more delay and data transfer fees.

https://www.toptechbox.com/2022/11/mostly-updated-latest-cloud-2022-asked-top-aws-ecr-interview-questions-and-answers.html