Do you fan these smokes, or open a window when your kitchen area fills with smoke? To set off a verification smoke you have to have smoke in it for 30 seconds or hit it twice with smoke within a couple minutes time
As for dialer delay. There is no dialer delay setting for 2GIG smokes or CO detectors to my knowledge.
As for a 2GIG smoke detector activation…smoke detector starts beeping (like a normal smoke alarm), then panel alarms shortly thereafter (panel only beeps for troubles, not alarm events). That’s how it works. The detector beeping is your warning that the alarm is about to activate.
If you have 120v interconnected smoke alarms that go off, those are ion detectors usually. The 2GIG ones are photo, and do not false as often as Ions near a kitchen.