Scale in Notch / normalizing

I have to import a big Venue for 20thousand people into Notch (for reference), and i would love to be all accurate, meaning that if i set up a Shape3d in Scale values 1 that it means 1 Meter, so all will be somewhat easier to calculate. I know from some 3D Softwares that they start to have Problems if the geometry is scaled too big. Does it matter in Notch? or can i just use any scaling and it will work? I tried it and with the Light set to physical FallOff (inverse-Squared), it starts to behave somewhat unexpected. I dont need to do that kind of lighting… but don’t wanna run into other problems later in the Job…

sorry i didnt mean Scale but the Size parameter with the Shape 3D set to 1 x 1 x1 seems to be 2m in real - maybe that comes from the idea that size is more like a “radius” to the cube? x= 1 means 1m in each direction?