iOS limited to 60Hz? Any way to get 120Hz on ProMotion displays?

I’m currently using Pixi JS and requestAnimationFrame() in my app, and I’m finding that on android devices with high refresh rate screens, this works great and I get the max refresh rate the device supports. But on iOS devices it’s locked to 60Hz. I’ve had a go at writing some native code to set CADisplayLink.preferredFrameRateRange but I’m not sure if I’ve done it correctly or if it’s even possible. All advice appreciated!