Recent slowdown in performance

I've had several programmers in our shop say they have experienced serious 
slow-downs in the responsiveness of WDSCi the last couple of days. It seems to 
take longer to start up, take a lot longer to resolve filters, and take longer 
to bring up lists in the Table View.

All of these programmers have also noticed slow-downs in the responsiveness of 
the iSeries itself. The green screens are taking longer to refresh, with 
occasional bottleneck pauses. However, the delays in WDSCi seem much longer 
than the delays experienced with the green screens.

Would delays in the responsiveness of an iSeries system due to high work load 
lead to disproportionately longer delays in WDSCi? Maybe WDSCi has a harder 
time than green screens dealing with an iSeries that does respond immediately 
to messages? Or should I be looking for other causes to the slow-down in WDSCi 
responsiveness? 

Thanks,
Kelly