IIS Log File extraction

$MaxDelay = 5000
$TimeoutDelay = 30000

$IISLogPath = "FullLogPath"
$IISLogFileRaw = [System.IO.File]::ReadAllLines($IISLogPath)
$headers = $IISLogFileRaw[3].split(" ".ToCharArray(), [System.StringSplitOptions]::RemoveEmptyEntries)
$headers = $headers | where {$_ -ne "#Fields:"}
$IISLogFileCSV = Import-Csv -Delimiter " " -Header $headers -Path $IISLogPath
$IISLogFileCSV = $IISLogFileCSV | where {$_.date -notlike "#*"}
$timeTaken = $IISLogFileCSV | foreach {$_.$("time-taken")}
$IISLogFileCSV | where {[int]$_.$("time-taken") -gt $MaxDelay} | Format-Table -AutoSize time, cs-username, cs-uri-stem, time-taken, sc-bytes
$IISLogFileCSV | where {[int]$_.$("time-taken") -gt $TimeoutDelay} | Format-Table -AutoSize time, cs-username, cs-uri-stem, time-taken, sc-bytes