Restore-PnPRecycleBinItem slow (1-2 sec pr itim)

[trackmankris]

I had a sharepoint policy delete a lot of content that we really didnt want to delete, so I need to restore +40.000 files from the recyclebin.

It's only items that were deleted by the policy, so DeletedByName = "System Account"

First i tried to restore it just by piping in the name, but that give me the result I expected - it looked like the process halted.

So I

1. Made a list of all the Id in a CSV file with header Id
2. Loaded all the ID's in toto mem with $IdDeleted = Import-CSV "File.csv"
3. Ran this to restore it $IdDeleted | foreach {Restore-PnPRecycleBinItem -Identity $_.Id -force}

The items are restored fine, as far as I can see, but each takes about 1-2 seconds - so it will take about two days to restore.

I'm a noob to sharepoint and powershell, but am I missing something obvious here, or is it by design that it takes so long?