Suggestions for https://www.reddit.com/r/vmware/comments/5q99je/why_is_my_script_so_slow_gettagassignment/

VMReportRewrite.ps1

#Requires -Version 3
Import-Module VMware.VimAutomation.Core
Connect-VIServer XXXXX

$Report = New-Object 'System.Collections.Generic.List[PSCustomObject]'
$VM = Get-VM

$VM | ForEach-Object {
    $Obj = [PSCustomObject][ordered]@{
        VMName = $_.Name
        VMPowerstate = $_.Powerstate
        VMTagDRSPrio = (Get-TagAssignment -Category DRSPrio $vmname).tag.name
        VMTagBootPrio = (Get-TagAssignment -Category BootPrio $vmname).tag.name
        VMFolder = $_.Folder
        VMMemoryGB = $_.MemoryGB
        VMNumCpu = $_.NumCpu
        VMProvisionedSpaceGB = $_.ProvisionedSpaceGB
        VMUsedSpaceGB = $_.UsedSpaceGB
        VMNotes = ($_.Notes -replace "`n"," ")
    }

    $Report.Add($Obj)
}

$Report | Export-Csv -Path "C:\Temp\VMTagList_$((Get-Date).ToString('yyyy-MM-dd_HH-mm-ss')).csv" -Delimiter ";" -NoTypeInformation