Shelly Dimmer2 SW1 and SW2 button "press" / "release"

I am trying to get SW (press input) from a Shelly Dimmer2.

Under the device, I can see that it is being registered (on the left), but only when I hold the button down for approx. 300 ms I can see it in “node red” (right). It is set up using “State node” (binary_sensor.shellydimmer2_483fda91a9c7_channel_1_input). Why can’t I get short press without delay?