SKLightNode performance issues

Question

I\'ve been experimenting with SKLightNode in SpriteKit (new in iOS8) and, even in a really simple test case, I\'ve been getting terrible performance. For instan

Answer 1

This ended up just being an issue with the GPU on the 3rd gen iPad not being up to the task to using SKLightNodes. I've now tested on iOS 8 and iOS 8.1 using the latest version of Xcode at the time (Version 6.1 (6A1052d) for iOS 8.1), with the same results. My test code runs at 60FPS on a iPhone 5s with 8 light sources, so the code itself doesn't seem to be the issue.