I got a lot more than a 25% improvement.. you seem to have a much quicker machine or perhaps you were running one of the earlier scripts? For the wine glass script it went from >2 minutes to 1.5 seconds when output buffered. https://github.com/cosmosdarwin/obj-in-powershell/pull/1

Also for those that haven't come across it https://github.com/dlwyatt/PowershellProfiler is pretty useful.. despite add-content being the obvious offender here..