As the notification system is currently set up, a standard event records for 12 seconds (Cam Plus can be longer), then the clip is uploaded to the cloud. Once there, you are notified there is a clip to look at. That can take the time you mention.
If it is a Cam Plus recording, then it also has to be processed to identify Persons, Vehicles, Packages, etc. Then the event is labeled, and you are given a more specific notification.
However – There is a wishlist item that asks Wyze to change the system from a notification of a clip, to a notification of a live event. Then instead of taking you to a clip, the notification would always take you to live view.
Unfortunately, they are not currently working on this. The status of the wishlist item is still set to “maybe-later”
You can vote for that wishlist item here: