A sample list with jetpack compose. It has bad performance

PokemonList.kt

import androidx.compose.Composable
import androidx.ui.core.Alignment
import androidx.ui.core.Modifier
import androidx.ui.foundation.*
import androidx.ui.foundation.shape.corner.CornerSize
import androidx.ui.foundation.shape.corner.RoundedCornerShape
import androidx.ui.graphics.ColorFilter
import androidx.ui.layout.*
import androidx.ui.material.Card
import androidx.ui.material.MaterialTheme
import androidx.ui.material.ripple.ripple
import androidx.ui.res.imageResource
import androidx.ui.tooling.preview.Preview
import androidx.ui.unit.dp
import androidx.ui.unit.sp

data class PokemonPreview(
    val slot: Int,
    val nickname: String,
    val level: Int
)

@Composable
fun PokemonList(pokemon: List<PokemonPreview>, onSelection: (slot: Int) -> Unit) {
    AdapterList(data = pokemon) {
        PokemonCard(name = it.nickname, level = it.level) {
            onSelection(it.slot)
        }
        if (it.slot == pokemon.lastIndex)
            Spacer(modifier = Modifier.preferredHeight(16.dp))
    }
}

@Composable
private fun PokemonCard(name: String, level: Int, onClick: () -> Unit) {
    Card(
        modifier = Modifier
            .fillMaxWidth()
            .preferredHeight(120.dp)
            .padding(start = 16.dp, top = 4.dp, bottom = 4.dp, end = 16.dp),
        color = MaterialTheme.colors.surface,
        shape = MaterialTheme.shapes.medium.copy(CornerSize(8.dp))
    ) {
        Clickable(onClick = onClick, modifier = Modifier.ripple()) {
            Stack {
                Image(
                    modifier = Modifier
                        .gravity(Alignment.BottomEnd)
                        .preferredSize(96.dp)
                        .offset(10.dp, 15.dp),
                    asset = imageResource(id = R.drawable.pokeball_s),
                    colorFilter = ColorFilter.tint(MaterialTheme.colors.onSurface.copy(alpha = 0.7f))
                )
                Column(
                    modifier = Modifier
                        .gravity(Alignment.TopStart)
                        .padding(start = 24.dp, top = 24.dp)
                ) {
                    Text(
                        modifier = Modifier,
                        text = name,
                        style = MaterialTheme.typography.body2.copy(fontSize = 18.sp),
                        color = MaterialTheme.colors.onSurface
                    )
                    CardLabel(text = "Lv. $level", modifier = Modifier.padding(top = 12.dp))
                }
            }
        }
    }
}

@Composable
private fun CardLabel(text: String, modifier: Modifier = Modifier) {
    Box(
        modifier = modifier,
        shape = RoundedCornerShape(8.dp),
        backgroundColor = MaterialTheme.colors.onSurface.copy(alpha = 0.2f),
        paddingBottom = 4.dp,
        paddingTop = 4.dp,
        paddingEnd = 8.dp,
        paddingStart = 8.dp
    ) {
        Text(
            text = text,
            style = MaterialTheme.typography.subtitle1.copy(fontSize = 12.sp),
            color = MaterialTheme.colors.onSurface
        )
    }
}