Slow Portfolio Workbench on Timeline ViewIssue Slow Portfolio Workbench on Timeline ViewCauseThis was happening because the Zoom level is set to Day on the Gantt Chart.There was a particular Program that has a date spanning out all the way into the year 2200. When it tries to add that many days to the Gantt, it takes a while. Make sure that the dates are not this far out, unless it truly is expected for your Project/Demand/Program.