Why is my PowerShell starting so slowly?

Make sure you aren't loading too much PSReadLine history. You can check the size with `Get-PSReadLineOption | % HistorySavePath`, as a large history file can slow down startup.

If you want a more hands-on approach, you can add some timing code in your profile. Just include `(get-date).ToString('o')` at the start and end of your profile file to see how long each part takes to run. Also, check the Event Viewer for any logs related to PowerShell issues.

Don't forget to check if your antivirus might be affecting PowerShell performance. Sometimes, security settings can slow down script execution.

One common cause could be existing custom scripts in your PowerShell profile that are slowing things down. You might want to check if you have anything there that could be affecting performance.

I found that having too many modules can bog things down. I only keep the essential ones, like `az.identity` and `az.policyInsights`, and that helped speed things up for me.

A quick solution is to open PowerShell with the command `Powershell.exe -noprofile`. If the slowness goes away, then your profile scripts are likely the issue. For a deeper dive, consider using a tool like psprofiler to identify what's really causing the delay.