As I already said in the past, even if the storage\NAS and/or the network is very very slow, it is a non sense to see a program hanging, not responding, mess the screen, etc. this is something that needs to be managed in the proper way.
As i said, if I load 5 years of purchase requests at work on SAP... it takes minutes and during this time windows the PC does not become a mess.
Then I suppose nobody on developer side fixed this bug.