What methods can be used to increase the rendering speed of the user interface in Jetpack Compose?

To improve UI rendering speed in Jetpack Compose, the following methods can be used:

• Minimize recompositions: use remember to save states and avoid unnecessary changes that trigger re-rendering.
• Use derivedStateOf to compute values dependent on states, so recomposition occurs only when these values change.
• Optimize composition structure: break down UI into small, reusable components so that changes affect only a minimal part of the interface.
• Use LazyColumn and other lazy containers for lists to render only visible items.
• Avoid heavy computations in the composable body — move them to ViewModel or use asynchronous operations.

Example of using remember and derivedStateOf:

val count = remember { mutableStateOf(0) }
val isEven = remember {
    derivedStateOf { count.value % 2 == 0 }
}

Text(text = if (isEven.value) "Even" else "Odd")