Open
Description
Moose group caches are taking a lot of time to build.
For example 1 just imported a Java model and I have the impression that 2/3 of the time spend in the import is during the building of the moose groups caches.
Maybe we could review how those are done? Maybe some could be optimized? Maybe some are unused and could be removed? Maybe some are not accessed often and could be computed lazily?