GetCounter1.ps1

$ComputerPSSession = New-PSSession -ComputerName $ServerList.servers.server.name -Credential $Credential
$params =@(
    @{
        ComputerName = 'ComputerName1'
        Counter = $MetricList
        SampleInterval = 3
        MaxSamples = 3
    },
    @{
        ComputerName = 'ComptuerName2'
        Counter = $MetricList1
        SampleInterval = 3
        MaxSamples = 3 
    }
)
$processedComputers = invoke-command -Session $ComputerPSSession -ScriptBlock {
    $fileName = '{0}_{1}_{2}.{3}' -f $USING:currentDate, $env:computername , $USING:profile, $USING:perfmonsOutputFileFormat
    $destinationFileName = Join-Path -Path $env:temp -ChildPath $fileName
    $currentParam = $USING:params | where-object {$PSItem.ComputerName -eq $env:computerName}
    Get-Counter $currentParam | Export-Counter -Path $destinationFileName -FileFormat $USING:perfmonsOutputFileFormat
    [pscustomobject]@{
        FilePath = $destinationFileName
        ComputerName = $env:ComputerName
    }
}
foreach ($Computer in $processedComputers) {
    $currentSession = $ComputerPSSession | Where-Object {$PSItem.ComputerName -eq $Computer.PSComputerName}
    Copy-Item -FromSession $currentSession -Path $Computer.FilePath -Destination .\
}
if($ComputerPSSession) { $ComputerPSSession | Remove-PSSession }