Performance issue: Enable renderer to support full 120 fps on iOS?

[cemck]

Hello,

I just tested the Expo example project and the camera view and renderer doesn't seem to be setup for full 120 FPS on iOS.

Is this a library limitation or wrong setup on my side?

Tested device: iPhone 17 Pro Max on iOS 26.5.1

[cemck]

I got this warning, even though the Expo example project is Expo 55, which has the new Architecture enabled by default:

» ios: withViro: ViroReact requires React Native New Architecture (Fabric) to be enabled. Please enable New Architecture in your app configuration. Add "newArchEnabled": true to your app.json/app.config.js expo configuration, or ensure your React Native project has New Architecture enabled.

[oliedis]

The new architecture warnings should be gone from the latest versions of the library and the the starters kits have been updated to Expo SDK 57 now.

I have created a new ticket (and I'll update this issue) for 120 FPS supports.

[oliedis]

Quick update on this: it is the system who is limiting the frame rate, Viro doesn't. We can try bypassing it, but our initial analysis flagged that doing this may break physics, so we have to update the physics engine to work smooth with 120 FPS.