Some Out of the box (OOTB) Reports (Financial Forecast Review by Plan Grouping and Financial Capitalization by Investment reports) are running significantly slower/timing out after upgrade to 15.8
STEPS TO REPRODUCE:
Expected Results: The reports to take approximately the same amount of time
Actual Results: The reports are significantly slower, and timing out
Release : 15.8, 15.8.1, 15.9, 15.9.1
Component : CLARITY JASPERSOFT
Fixed in 15.9.2 as DE56072
Workaround: Create a custom report with the jrxml from 15.4.1 will make it execute fast again.