We are migrating around 250 GB of data from file shares to SharePoint online site collection using the migration tool provided by Office 365 for migrating from file shares. Now i know that the migration speed can vary based on many factors such as; how many files we have and the internet speed. But if we assume that the files we have are regular files of 1-2 MB of size + we have internet speed of 200 mbps + we mentioned to preserve the permission of the migrated files.. so what will be the average migration speed (+/- 15%) we should expect? for example should we expect 1 GB per hour ? 0.5 GB per hour ? 2 GB per hour?