Hi @servinformatica,
Thank you for the detailed report. Unfortunately nothing comes to mind as to what could be causing the load issues. The code that the page appears to be choking on is native to osTicket.
But I will be happy to look into this for you. To do so I will need you to create a temporary agent account (Admin Panel > Agents > Add New Agent) using info@osticketawesome.com. Be sure to give the account full administrative privileges.