#v4
Measure-Command { foreach($source in $sources)
    {
    $sourcepath = $source.path.replace('\','/')
    $count = $allstats.sourcefilename.Where({$_ -like "*$sourcepath*"}).count
    $array += [pscustomobject]@{count = $count; path = $source.path}
    }
    }

    #v5
Measure-Command {
    foreach ($source in $sources)
    {
        $sourcepath = $source.path.replace('\','/')
        $array += [pscustomobject]@{
        count = $allstats.sourcefilename.Where({$_ -like "*$sourcepath*"}).count
        path = $source.path}
    }
}