Is there a way to force group synchronization onyl instead of full ldap sync

[Florian Buehlmann]

We have a large ldap with over 10'000 users and thousends of groups. We filter the ldap sync to only allow subset of users and groups.

Currently the full sync takes a very long time (about 3000s)

If we add new groups to ldap and want to add these groups to space permissions we habe to wait a long time till the synchronization is done. 

Is there a way to force group synchronization only instead of full ldap sync?