Title: SpriteKit FPS drops significantly on iOS 26.3.1 when touching screen, even in a minimal scene Summary: On a real device running iOS 26.3.1, FPS drops significantly in a very simple SpriteKit scene when touching or moving a finger on the screen. This happens even with a minimal setup where update(_:), touchesBegan, and touchesMoved are not overridden. Because the issue reproduces in a minimal scene, I suspect a performance regression in SpriteKit and/or iOS rather than in app-specific logic. Environment: OS: iOS 26.3.1 Device: iPhone 12 Xcode: 26.3 Build Configuration: Release Framework: SpriteKit FPS measurement: SKView.showsFPS = true Steps to Reproduce: Present a minimal SpriteKit scene. Enable SKView.showsFPS = true. Add only a very small number of nodes to the scene. Do not override update(_:), touchesBegan, or touchesMoved. Repeatedly tap the screen or move a finger around. Actual Result: The scene stays around 60 FPS when idle. FPS drops significantly when touching or moving a finger on
Topic:
Graphics & Games
SubTopic:
SpriteKit
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