Ultra-large texture atlases in SpriteKit

I'm looking to use high-quality and large images as animated sprites via SpriteKit.

Right now the default maximum size of a texture atlas is 4096*4096, which is at least an order of magnitude below what I need. There's an option to create custom maximum sizes, but the tiny default and the age of the SpriteKit framework is giving me second thoughts even though I'd very much like to stick with an Apple framework and not have to rely on another party like Unity.

Before I invest my time and energy into SpriteKit I'd like to know whether the decade-old framework, running on modern hardware (A11 and newer), can support massive texture atlases while maintaining decent performance (~30 FPS).

If not, is it possible to implement something similar in less antiquated frameworks, such as RealityKit (non-AR).

Thanks in advance for your time.