Dashboard or App load time help

Product: PowerShell Universal
Version: 4.2.4

Is there any troubleshooting documentation to help understand what is happening when clicking on a PSU App link and the time it take for the App to render?
Seams like the blank screen stays a long time before the App even loads and sometimes when the Server has medium load opening any PSU App is very slow. There is no impact to the Admin website as it operates normally.