Import-CSV departments.csv | ForEach-Object { Set-User $_.EmailAddress $_.Department }

The problem is, this operation takes FOREVER.

My first thought is that it would be great to have the ForEach-Object command actually be forwarded over to the remote machine, so that it will only need to create the one pipeline between the two machines, but when I go into the PSSession, there doesn't seem to be any foreach-object available.  For reference, How I Import the PSSession is:

Import-PSSession(New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri 'https://ps.outlook.com/powershell' -Credential (Get-Credential) -Authentication Basic -AllowRedirection)

Is there a better way that I can import the session to allow ForEach-Object to be remote, or to import an aliased version of the remote foreach-object, perhaps as ForEach-Object-Remote, or perhaps does anybody have something better to suggest to streamline this process?

Thanks, Ryan