Options to backup table in azure storage

I’m deleting few storage accounts which is not in use currently. Before deleting the storage account I’m transferring important files to another storage account using azcopy and azure storage explorer.

Currently there were about 1000 of tables in some of my storage account. It’s very hard to backup them using the storage explorer as it’s taking more time to scan and export. Had written script to download the table contents in csv but that is very slow as well. Please share Any ideas/ tool which could help to speed up the process