Jetpack Compose Performance Blueprint: Recomposition & Memory Tuning

Jetpack Compose transforms native Android UI creation with reactive declarative layouts. However, misconfigured state stability can lead to unnecessary recompositions and stuttering scrolling behavior.

**TL;DR:** Maximize Compose rendering speeds by marking model parameters as `@Immutable`, using `derivedStateOf` for calculated values, and compiling Android Baseline Profiles.

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1. Immutable State Annotation Blueprint

import androidx.compose.runtime.Immutable
import androidx.compose.runtime.Composable
import androidx.compose.material3.Text

// Marking data class as @Immutable tells Compose compiler properties never change after construction
@Immutable
data class UserProfileState(
    val userId: String,
    val username: String,
    val avatarUrl: String
)

@Composable
fun UserCard(user: UserProfileState, modifier: Modifier = Modifier) {
    Text(
        text = user.username,
        modifier = modifier
    )
}

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2. Performance Comparison Table