Here are some tips that you can refer.
We should avoid a nested view and try to create a flat view wherever possible. Nested view reduces CollectionView performance. For example, add vertical
CollectionView is rendererd by AndroidX.RecyclerView.Widget.RecyclerView in Native Android. If the height of all the items is equal. Set
recycleView.HasFixedSize = true; in CollectionViewHandler.
Here are tips from Xamarin offical document Improve Xamarin.Forms App Performance. But some tips are working in MAUI. Such as following topics: Reduce unnecessary, Choose the correct layout bindings, Optimize layout performance, Use asynchronous programming and Reduce the visual tree size.
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.