VR where is the BP for the camera ?

First, when I have tested the VR without doing any change to my map I had sacaling problem.
When I was walking 4 meters in reality, i walked only 50 centimeters in the game. But my head was at the good distance from the floor.

So, i tried to increase the world to meter (i am now at 200). When I move now, it is almost the same distance walking in the game and walking in reality. So it is good it is what I wanted. But I have now the head in the ceiling due to the increase of the world to meter.
Do you understand what I mean or do I explain it baddly ?

I am already using a player start. But it doesn’t change anything :confused: