10 Jetpack Compose Performance Tips: Boost Android App Speed 2025

When it comes to building smooth, responsive Android apps, Jetpack Compose performance is non-negotiable. As Android's modern UI toolkit continues to evolve, understanding how to optimize your Compose apps has become essential for delivering exceptional user experiences. Whether you're dealing with janky animations, slow list scrolling, or startup delays, mastering these Jetpack Compose optimization techniques will transform your app's performance.
In this comprehensive guide, we'll dive deep into 10 actionable strategies that will help you improve Compose performance and create apps that feel lightning-fast. From minimizing recomposition overhead to implementing cutting-edge baseline profiles, these proven techniques will elevate your Android Compose performance to professional levels.
Tip 1: Understand and Minimize Recomposition Scope
The foundation of effective Jetpack Compose optimization lies in understanding recomposition—the process where Compose re-executes composable functions when their inputs change. Think of recomposition as Compose's way of keeping your UI synchronized with your app's state.
Here's the key insight: Compose is smart enough to skip recomposing functions when their inputs remain stable and unchanged. However, poorly structured composables can trigger unnecessary recompositions that cascade through your entire UI hierarchy.
// ❌ Poor: Changes to any field recomposes entire UI
@Composable
fun UserProfile(user: User) {
Column {
Text(user.name)
Text(user.email)
Text("Last seen: ${user.lastSeen}")
ExpensiveChart(user.statistics)
}
}
// ✅ Better: Isolated recomposition boundaries
@Composable
fun UserProfile(user: User) {
Column {
UserBasicInfo(name = user.name, email = user.email)
LastSeenDisplay(lastSeen = user.lastSeen)
ExpensiveChart(statistics = user.statistics)
}
}
By breaking down your composables into smaller, focused functions with specific parameters, you create natural recomposition boundaries. When user.lastSeen
changes, only LastSeenDisplay
recomposes—not the entire profile.
Pro tip: Use Android Studio's Layout Inspector to visualize recomposition counts and identify components that recompose too frequently.
Tip 2: Leverage remember
Wisely (and rememberSaveable
for Configuration Changes)
The remember
function isn't just for managing state—it's your secret weapon for improving Compose performance by caching expensive calculations and object instantiations.
@Composable
fun ProductList(products: List<Product>) {
// ✅ Remember expensive calculations
val sortedProducts = remember(products) {
products.sortedByDescending { it.rating }
}
// ✅ Remember complex object creation
val dateFormatter = remember {
SimpleDateFormat("MMM dd, yyyy", Locale.getDefault())
}
LazyColumn {
items(sortedProducts) { product ->
ProductItem(
product = product,
formattedDate = dateFormatter.format(product.createdDate)
)
}
}
}
For configuration changes like screen rotations, use rememberSaveable
to persist important data:
@Composable
fun SearchScreen() {
var searchQuery by rememberSaveable { mutableStateOf("") }
val searchResults = remember(searchQuery) {
if (searchQuery.length >= 3) {
performExpensiveSearch(searchQuery)
} else emptyList()
}
}
Tip 3: Ensure Class Stability for Skippable Composables
Android Compose performance heavily depends on Compose's ability to skip unnecessary recompositions. This skipping mechanism relies on parameter stability—whether Compose can determine if a parameter has truly changed.
Stable types include:
- Primitive types (
Int
,String
,Boolean
) - Functions and lambdas
- Classes annotated with
@Stable
or@Immutable
// ❌ Unstable: Mutable properties
data class UserSettings(
var theme: Theme,
var notifications: Boolean
)
// ✅ Stable: Immutable properties
@Immutable
data class UserSettings(
val theme: Theme,
val notifications: Boolean
)
// ✅ Alternative: Use @Stable for controlled mutability
@Stable
class UserSettingsController {
var theme by mutableStateOf(Theme.LIGHT)
private set
fun updateTheme(newTheme: Theme) {
theme = newTheme
}
}
Use the Compose Compiler Metrics to analyze stability:
./gradlew assembleRelease -PcomposeCompilerReports=true
This generates detailed reports showing which composables are skippable and which parameters cause instability.
Tip 4: Use derivedStateOf
for State That Changes Less Frequently Than Its Inputs
When you have state that depends on other state but changes less frequently, derivedStateOf
prevents unnecessary recompositions by only updating when the derived value actually changes.
@Composable
fun ShoppingCart(items: List<CartItem>) {
// ✅ Only recomposes when total actually changes
val totalPrice = remember {
derivedStateOf {
items.sumOf { it.price * it.quantity }
}
}
// ✅ Expensive filtering that only runs when needed
val availableItems = remember {
derivedStateOf {
items.filter { it.inStock && it.quantity > 0 }
}
}
Column {
Text("Total: $${totalPrice.value}")
Text("Available items: ${availableItems.value.size}")
}
}
Without derivedStateOf
, these calculations would run on every recomposition, even when the results haven't changed.
Tip 5: Optimize Your Lazy Layouts (LazyColumn
, LazyRow
, LazyGrid
)
Lazy layouts are the backbone of performant scrolling experiences in Compose. Here's how to maximize their efficiency:
Keys Are King
Always provide meaningful keys for dynamic content:
@Composable
fun MessageList(messages: List<Message>) {
LazyColumn {
items(
items = messages,
key = { message -> message.id } // ✅ Stable, unique key
) { message ->
MessageItem(message = message)
}
}
}
Leverage contentType
for Item Reuse
LazyColumn {
items(
items = feedItems,
key = { it.id },
contentType = { item ->
when (item.type) {
FeedItemType.TEXT -> "text"
FeedItemType.IMAGE -> "image"
FeedItemType.VIDEO -> "video"
}
}
) { item ->
FeedItemContent(item)
}
}
Consider Paging3 for Large Datasets
For massive lists, integrate Paging3 to load data incrementally:
@Composable
fun ProductCatalog(pagingItems: LazyPagingItems<Product>) {
LazyColumn {
items(pagingItems.itemCount) { index ->
pagingItems[index]?.let { product ->
ProductCard(product = product)
}
}
}
}
Tip 6: Defer Reads with Lambdas for Modifiers and State
One of the most overlooked Jetpack Compose performance optimizations involves deferring state reads until they're actually needed. This prevents unnecessary recompositions when state changes frequently.
@Composable
fun AnimatedButton(isPressed: State<Boolean>) {
// ❌ Triggers recomposition on every isPressed change
Button(
modifier = Modifier
.scale(if (isPressed.value) 0.95f else 1.0f)
.alpha(if (isPressed.value) 0.8f else 1.0f),
onClick = { }
) {
Text("Press me")
}
// ✅ Defers read until draw phase
Button(
modifier = Modifier
.graphicsLayer {
scaleX = if (isPressed.value) 0.95f else 1.0f
scaleY = if (isPressed.value) 0.95f else 1.0f
alpha = if (isPressed.value) 0.8f else 1.0f
},
onClick = { }
) {
Text("Press me")
}
}
For frequently changing values like animation offsets:
// ✅ Lambda defers the read
Modifier.offset { IntOffset(animatedOffset.value.toInt(), 0) }
// ❌ Direct read causes frequent recomposition
Modifier.offset(x = animatedOffset.value.dp)
Tip 7: Profile Your App – Don't Guess!
Effective Jetpack Compose optimization requires data-driven decisions. Here are the essential profiling tools:
Layout Inspector for Recomposition Analysis
- Run your app in debug mode
- Open Tools > Layout Inspector
- Enable Live Updates and Recomposition Counts
- Interact with your app to identify hotspots
Look for components with high recomposition counts—these are your optimization targets.
CPU Profiler for Performance Bottlenecks
- Open View > Tool Windows > Profiler
- Start a CPU recording with System Trace
- Perform actions that feel janky
- Analyze the timeline for frame drops and long-running operations
Compose Composition Tracing
Available in Android Studio Iguana and later:
- Enable Preferences > Experimental > Compose > Enable Composition Tracing
- Use the dedicated Compose tab in the profiler
- Track composition, recomposition, and skipping events in real-time
Tip 8: Optimize Custom Graphics and Canvas
Usage
Custom drawing operations can significantly impact performance if not handled carefully. Here's how to optimize them:
@Composable
fun CustomChart(dataPoints: List<Float>) {
// ✅ Remember expensive objects outside of draw scope
val paint = remember {
Paint().apply {
color = Color.Blue
strokeWidth = 4f
style = PaintingStyle.Stroke
}
}
val path = remember { Path() }
Canvas(
modifier = Modifier
.fillMaxWidth()
.height(200.dp)
.drawWithCache { // ✅ Cache drawing operations
val cachedPath = buildPath(dataPoints, size)
onDrawBehind {
drawPath(cachedPath, paint)
}
}
) { }
}
private fun buildPath(dataPoints: List<Float>, size: Size): Path {
return Path().apply {
if (dataPoints.isNotEmpty()) {
moveTo(0f, dataPoints[0] * size.height)
dataPoints.forEachIndexed { index, point ->
val x = (index / (dataPoints.size - 1).toFloat()) * size.width
val y = point * size.height
lineTo(x, y)
}
}
}
}
Use Modifier.drawWithCache
when your drawing operations depend on size or other layout properties that change infrequently.
Tip 9: Implement Baseline Profiles for Startup and Critical User Journeys
Baseline Profiles are one of the most impactful yet underutilized Android Compose performance optimizations. They tell the Android Runtime which parts of your code are critical for startup and common user flows, enabling ahead-of-time compilation for faster execution.
Setting Up Baseline Profiles
- Add the Baseline Profile Gradle plugin:
// app/build.gradle.kts
plugins {
id("androidx.baselineprofile")
}
dependencies {
"baselineProfile"(project(":baselineprofile"))
}
- Create a baseline profile module:
// baselineprofile/build.gradle.kts
plugins {
id("com.android.test")
id("androidx.baselineprofile")
}
baselineProfile {
managedDevices += "pixel6Api34"
}
- Write profile generation tests:
@Test
fun generateBaselineProfile() {
val baselineProfileRule = BaselineProfileRule()
baselineProfileRule.collect(
packageName = "com.yourapp.package",
includeInStartupProfile = true
) {
startActivityAndWait()
// Navigate through critical user journeys
navigateToProductList()
scrollThroughProducts()
openProductDetails()
}
}
Baseline Profiles can improve app startup time by up to 30% and reduce jank during critical interactions.
Tip 10: Be Mindful of Heavy Calculations in Composable Functions
The golden rule of improving Compose performance: never block the main thread inside composable functions. Heavy calculations should be offloaded to background threads using Coroutines.
@Composable
fun DataAnalysisScreen(rawData: List<DataPoint>) {
var analysisResult by remember { mutableStateOf<AnalysisResult?>(null) }
var isLoading by remember { mutableStateOf(false) }
// ✅ Offload heavy work to background thread
LaunchedEffect(rawData) {
isLoading = true
analysisResult = withContext(Dispatchers.Default) {
performComplexAnalysis(rawData) // Heavy CPU work
}
isLoading = false
}
if (isLoading) {
CircularProgressIndicator()
} else {
analysisResult?.let { result ->
AnalysisResultDisplay(result = result)
}
}
}
// ❌ Never do this in a composable
@Composable
fun BadExample(data: List<Item>) {
// This blocks the main thread and causes jank!
val processedData = data.map { item ->
performExpensiveCalculation(item)
}
LazyColumn {
items(processedData) { item ->
ItemDisplay(item)
}
}
}
For ongoing work that needs to survive configuration changes, use ViewModel
with coroutines:
class DataAnalysisViewModel : ViewModel() {
private val _analysisState = MutableStateFlow<AnalysisState>(AnalysisState.Idle)
val analysisState = _analysisState.asStateFlow()
fun startAnalysis(data: List<DataPoint>) {
viewModelScope.launch(Dispatchers.Default) {
_analysisState.value = AnalysisState.Loading
try {
val result = performComplexAnalysis(data)
_analysisState.value = AnalysisState.Success(result)
} catch (e: Exception) {
_analysisState.value = AnalysisState.Error(e.message)
}
}
}
}
Conclusion: Mastering Jetpack Compose Performance
These 10 strategies form the foundation of professional Jetpack Compose performance optimization. From understanding recomposition boundaries to implementing baseline profiles, each technique addresses specific performance challenges that can make or break your user experience.
Remember that performance optimization is an iterative process. Start by profiling your app to identify the biggest bottlenecks, then apply these techniques strategically. Focus on the areas that will have the most impact on your users' experience—typically startup time, scrolling performance, and interactive animations.
The key to sustained success with Android Compose performance lies in building performance considerations into your development workflow from day one. Make profiling a regular part of your development process, write composables with recomposition in mind, and always measure the impact of your optimizations.
As Jetpack Compose continues to evolve, staying current with performance best practices will ensure your apps remain fast, smooth, and delightful to use. Start implementing these tips today, and watch your app's performance transform from good to exceptional.
Want to dive deeper into Android development optimization? Explore our comprehensive guides on Compose architecture patterns, advanced state management techniques, and modern UI testing strategies to take your skills to the next level.