If your app is crashing, slowing down or behaving strangely when using the video feature, these are some of the things that could be causing it:
1. The type of device you are using: Older devices may struggle to support the video feature.
2. Your operating system version: You might need to update your device operating system
Go to Settings > General > Software Update to check whether you're on the latest iOS version or whether you need to upgrade.
Go to Settings > About Phone > Android Version to check whether you're on the latest Android version or whether you need to upgrade.
3. Available memory on your device: How much storage space do you have available on your device? Freeing up some storage could help to make things work better.
Go to Settings > General > iPhone Storage to check your available storage and free up some space
Go to Settings > Storage to check your available storage and free up some space.
4. Low battery: Make sure your battery is charged