FPS reduction on iOS devices

Hi! I made another game in qdevelop and again have the same problem. On iOS devices, the game produces 30 fps, on android devices 60. I might think that I optimized the game badly, but everything works very smoothly on an old android smartphone. The problem is only on ios, in all browsers. Smartphone iphone 12 pro, with ios 16.3. I am very upset about this problem. Maybe someone knows the reason for it.

All iOS browsers use Safari, I was told. And Safari isn’t great.

Thank you for your attention to this problem. It’s very sad. Gdevelop is a wonderful and very convenient program. But the opportunity to make high-quality games for a significant number of devices disappears. I really hope that this problem will be solved over time.