Performance Advisor content has been moved to "live" within the segments they represent.
Please find performance advisor in these community spaces listed below and engage!
Creo:
https://community.ptc.com/t5/forums/filteredbylabelpage/board-id/installation_licensing/label-name/p...
Windchill:
https://community.ptc.com/t5/forums/filteredbylabelpage/board-id/Windchill/label-name/performance%20...
Integrity (Windchill SSE)
https://community.ptc.com/t5/forums/filteredbylabelpage/board-id/Integrity/label-name/performance%20...