There is a lag which is due to the printing of the MooseGroupRuntimeStorage items.

In Collection>>gtDisplayOn:, the stream in argument is not used to print the contents of the collection. So the whole collection is printed whereas only a part of the contents has to be printed.

 

The current implementation is:

“s nextPutAll: ((String streamContents: [ :stream | self printElementsOn: stream ]) truncateWithElipsisTo: 42).”

And it should simply be:

“self printElementsOn: s”