Memory Leak for Update-SPSolution using Powershell Remoting and Sharepoint 2010

I use PowerShell remoting to deploy scripts ps1 for SharePoint 2010.

I get Memory Leak in any cases using Update-SPSolution cmdlet.

I get timeout error for deployment. And powershell.exe process in client it's get 3 GB RAM.

$SolutionPath = Join-Path $SolutionPath $SolutionName
Update-SPSolution -Identity $SolutionName -LiteralPath $SolutionPath -GACDeployment -Force

Write-Host -NoNewLine "`nExecuting job for update..."
do
{
    Write-Host -NoNewLine .
    Start-Sleep -Seconds 1
    $targetSolution = Get-SPSolution | Where-Object {$_.Name -eq $SolutionName}
}while ($targetSolution.JobExists -eq $true)

Any suggestions for troubleshooting?