Don’t worry if your migration takes a little longer than your expectation, especially with Shopify.
You might be transferring too much data, and using other third parties to config your products and integrate them with your migration.
Working with Shopify means you are using API procedure (Application Programming Interface). Normally this protocol will make your migration a bit longer than others, like open-source platform target for example, not only Shopify but also all platforms with API.
Your migration can suffer from delivering too much pictures.
In case your site is bogged down in error, no worry, please feel to contact us, our data expert will be available to help you!