Simulator on Xcode 10 became terribly slow

Question

Everything worked perfect on Xcode 9. But after updating to Xcode 10, Simulator started to get huge lags. Super simple animation is working on 2 fps and whole Mac OS is super sl

Answer 1

I had same problem and this fixed it:

defaults write com.apple.CoreSimulator.IndigoFramebufferServices FramebufferRendererHint X  

Where X is:

0 = auto

1 = Metal

2 = OpenCL

3 = OpenGL