Ah I see. That’s what I thought — Instant is indeed very subjective.
I can confirm that it’s also around 8-15 seconds on my end. Unfortunately, that’s about 7-14 seconds too long for my expectations. I used to have the nello.io door opener which would send you Apple Push Notifications in less than 1 second anywhere in the world. My upper limit is 3-4 seconds maybe and I hope we’ll one day get there.
The best way for me to test the reaction of Opener is to turn on the sound. When ringing it detects the sound within about 1 second or less. It’s very fast. And then the big waiting begins.
Some of the delay is obviously known: No notifications before the delay, opening and sound have happened. This means if you have ring to open active, you will not receive a notification in less than Delay Time + Opening Time.
The other component is probably due to the interaction between Opener and Bridge. This is something Nuki has tried to fix in 1.6.0 apparently. I thought it’s still broken as 15 seconds is inacceptable to me, but in that case it was even worse before.
p.s. another way you can test the reaction: activate Ring to Open and then ring, and see how long it takes to open the door. It’s usually pretty fast and it confirms the speed for you.