we experience a lot of lag when LazyColumn adds a new portion of composables. What can we do to mitigate it? it’s a calendar with a lot of distinct Text()’s each month

Are you testing performance in debug builds or release builds? The performance of release builds is known to be better than debug, for compose.

It's debug mostly, we have just started. But the lag is so drastic, it obviously won't go away on release builds. The lag happens when a new portion of items is being added to LazyColumn

The difference between debug and release builds is noticeable. You can search this channel for many of the same questions; it comes up often. I'm not saying you don't have a performance problem, but you should make sure to always measure performance in release builds, not debug.

Yeah. Try a release build ORRR at the very least add

debuggable = false

flag to your debug build config in build.gradle just to see how perf improves.

Are your list items homogenous? If not, make sure to specify the item type so compose can more efficiently recycle list nodes

@Zach Klippenstein (he/him) [MOD] Could you provide more info on how we can specify the item type in

LazyColumn

?

Take a look at LazyListScope.items https://developer.android.com/reference/kotlin/androidx/compose/foundation/lazy/LazyListScope#items(kotlin.Int,kotlin.Function1,kotlin.Function1,kotlin.Function2)