API Limitations using Get commands "TooManyRequests" Error

Hello! Unfortunately I don't recall having a good solution for this issue. However, it appears I've made some changes to the script since I first asked for help. I believe I tinkered with the start-sleep time both inside and outside of the foreach loop and that seemed to have helped. 

#################################
#            Reports            #
#################################
# Loops through each workspace and lists the reports in the workspace. 
$ReportsStopWatch = New-Object -TypeName System.Diagnostics.Stopwatch
$ReportsStopWatch.Start()

$ReportListExportPath = $exportPath + "ReportList" + $exportPathFileType

Write-Host ""
Write-Host "Starting Reports extract..." -ForegroundColor green 
$ReportsIncrementalCounter = 0 
Start-Sleep -Seconds 300

$ReportList =
ForEach ($workspace in $Workspaces)
    {
    $ReportsIncrementalCounter ++
    Write-Host $ReportsIncrementalCounter " of " $Workspaces.Count " total workspaces. Fetching reports in workspace: " $workspace.Name
    #The script has to be paused to work around the API rate limitations error "too many requests". 
    Start-Sleep -Seconds 10 
    ForEach ($report in (Get-PowerBIReport -Scope Organization -WorkspaceId $workspace.Id))
        {
        [pscustomobject]@{
            WorkspaceID     = $workspace.Id
            WorkspaceName   = $workspace.Name
            ReportID        = $report.Id
            ReportName      = $report.Name
            ReportURL       = $report.WebUrl
            ReportDatasetID = $report.DatasetId
            }
        }
    }
$ReportList
if ($?) {
    Write-Host "Successfully retrieved report variables." -ForegroundColor green  
    Write-Host "Exporting report information to .csv file." -ForegroundColor green
    $ReportList | Export-CSV $ReportListExportPath -NoTypeInformation -Encoding UTF8
        if ($?) {
            Write-Host "Successfully saved PowerBIReportList_$currentDate to C:\users\$env:USERNAME\Desktop" -ForegroundColor green             
            } 
            else {            
                write-host "Failed to save PowerBIReportList file to C:\users\$env:USERNAME\Desktop" -ForegroundColor yellow
    }           
}

else {
    Write-Host "Failed to login to PowerBI. NOTE: Must have Global Admin, within Office 365 or Azure AD, or be a Power BI service administrator." -ForegroundColor yellow
    break
}
$ReportsElapsedTime = $ReportsStopWatch.Elapsed.Ticks
$ReportsStopWatch.Reset()