In the ATE environment, any operation that requires a return status or other response from the client workstation introduces a small delay. The delay is not significant when doing just a few operations, but it can add up when large numbers of operations are performed in sequence. The simplest way to minimize the problem is to not ask for a returned status (see cstatus) or ctlid when creating controls (assuming that you do not need to use the ctlid later.) But when you do need a return status or control ID, then an alternative way to speed up the communication with the client is to create a batch. See Batch Operations.