WKInterfaceSCNScene works fine on simulator, but delayed start on watch

I have a fairly simple WKInterfaceSCNScene in my Apple Watch app (the SCNScene contains only: camera, floor, cylinder). It runs a ~3-second animation. It works terrific on the simulator, but when I run it on my actual watch (series 7), it delays for about 6 seconds, then the animation displays properly.

Is the watch's processor so much slower than the simulator on my laptop? I could probably deal with a 0.5 second delay, but 6 seconds?

Thoughts?

its a simulator, not an emulator, so yes you definitely need to code and test this on device.

WKInterfaceSCNScene works fine on simulator, but delayed start on watch
 
 
Q