The operation with qmicli takes so long because we prepare a request message, send it to the device, wait for the response, and process the response message. If you want something quicker, the only thing I can think of is to prepare a custom program that enables NAS Signal Info indications and waits for them to be sent asynchronously by the device. We would be saving the time needed to send our request and wait for the modem’s response; we would just need to process the indication sent by the device.