Check out the documentation, this setting is "No" by default:
http://www.novell.com/documentation/zenworks7/dm7admin/data/ah7pogz.html
"Read group objects for applications: Specify whether or not you want
Workstation Helper to read Group objects to see if the workstation has been
associated with any applications through membership in a group. Although
groups are a convenient way of indirectly associating workstations with
applications, reading Group objects can also decrease performance.
The setting values are Yes, No, and Unset. The default value (No) is used if
you select Unset and no parent container includes a customized setting."
Regards
Rolf Lidvall
Swedish Radio (Ltd)