In the Modern Project, when creating a new widget, the 'Group by' field values takes about 40 to 60 seconds to load.
STEPS TO REPRODUCE:
1.Go to Project Grid List
2.Click Manage Widgets > New Widget
3.Add Pie or Bar Chart
4.Click field 'Group By'
Expected: Values should load/populate within 5 seconds
Actual: It takes at least 40 seconds to populate.
Release : 16.0.3
This is reported as DE68580 and will be under Engineering review