Question Switch behavior

Hello,
maybe I make some mistakes, but I don't understand why the switch routing behave so different.
I have a simple cube with a rotation graph on it. If I use the If routing with explicit looking for the space key input, the rotation is fine, as expected. But when I use the switch unit and branch the space key, the rotation is lame. When I'm routing the default output from the switch unit, it looks the same as the If example.

The If sample:


The switch with space branching


The switch with default branching