Requirement Widget Performance

Hello, 
I need some information about the Requirement management widget, My client uses this widget to create large structured specifications containing over 20,000 objects, Unfortunately, each time we want to open a structure with such volume, handling this widget becomes very complicated. The user encounters delays when inserting a requirement group which takes more than 10 minutes,
Do you have any feedback regarding the performance aspects of this widget ? If so, could you tell us what is the maximum volume authorized to avoid these delays?

Thank,s in advance

Edu ​​​​​​​ENOVIA ​​​​​​​Requirements Structure Editor ​​​​​​​