Performance issues with Invoke-DscResource for multiple DSC resources about psdesiredstateconfiguration

[gaelcolas]

My guess is that most of this slowness comes from Get-DscResource that's called when running Invoke-DscResource, because it's ran every time, it lists all resources available in all $Env:PSmodulePath, and does it recursively through the paths...
@KristiyanGK if you try to change your $Env:PSModulePath just before you run the Invoke-DscResource to only contain the folder that has your resource, it might get a little bit faster.

An potential way to optimise this could be to better support the pipeline in the Invoke-DscResource cmdlet, so that the listing of all available resources is done once and cached in the begin block, then the process block does the invocations.
For that the Parameters Method and Property should implement ValueFromPipelineByPropertyName.