ZENworks Configuration Management bundles can cause slow logins under certain circumstances:
If a large number of bundles is assigned, triggering considerable content metadata to be pushed in the initial refresh.
If a large number of system requirements are associated with the bundles. The system requirements are evaluated to identify which bundle needs to be enforced on the device.
If a large number of bundles are assigned to the device or user and are configured to be launched on login.
If NALWIN is launched when the user logs in.