Adding a single MLNAnnotationView to an MLNMapView results in laggy map rendering

[cgalvan]

Describe the bug
Adding a single MLNAnnotationView to an MLNMapView results in laggy map rendering.

To Reproduce
Steps to reproduce the behavior:

1. Run the attached sample app on iOS 15.
2. Try swiping on the map to pan.
3. Note the slow response to touch. Sometimes it will freeze for more than a second.

Expected behavior
The map should not freeze or be laggy with a single UIView annotation.

Screenshots
Sample application and video attached.

Platform information (please complete the following information):
Version: ios-v6.0.0
OS: iOS 15
Platform: iOS 15 running on iPhone 12

Additional context
Upgraded the iPhone 12 to iOS 17, and the issue is not reproducible.

[cgalvan]

HelloMapLibre.zip

IMG_3131.MOV

[sjg-wdw]

Wow, that's weird. But it almost looks like a gesture delay to me.

[funclosure]

Encounter this issue as well,
seems like it's related to https://github.com/mapbox/mapbox-gl-native-ios/issues/350

adding
mapView.preferredFramesPerSecond = .lowPower helps
mapbox/mapbox-gl-native-ios#350 (comment)

[louwers]

@stefankarschti Do we have an issue for the potential follow-up?

What new construct would be needed again? Sorry, I forgot the name.

[stefankarschti]

@louwers #2181 marks the remaining work to be done.