LazyColumn is slower than Column with vertical scroll

Question

I have product cell which I want to display on the list, I've used LazyColumn but performance was terrible, I couldn't find why it is so slow. Then I've switched LazyColumn to Column and all of the sudden scrolling is super smooth

LazyColumn version:

LazyColumn() {
    items(cartItems, key = {it.cartItem.id}) { cartItemData ->
        CartItemWithActions(data = cartItemData)
        Divider(color = colorResource(id = R.color.separator_line))
    }
}
 

Column version

val state = rememberScrollState()
Column(modifier = Modifier.verticalScroll(state)) {
    cartItems.forEach { cartItemData ->
        CartItemWithActions(data = cartItemData)
        Divider(color = colorResource(id = R.color.separator_line))
    }
}

CartItemWithActions is my product cell with image that I'm loading using glide and couple of texts

HWUI for LazyColumn version

HWUI for Column

Can anyone provide hint why LazyColumn is slower than Column?

UPDATE

It seems LazyColumn scroll much better when LazyColumn is setup this way

LazyColumn() {
    items(
        count = cartItems.size,
        key = {
            cartItems[it].cartItem.id
        },
        itemContent = { index ->
            val cartItemData = cartItems[index]
            CartItemWithActions(data = cartItemData)
            Divider(
                color = colorResource(id =R.color.separator_line)
            )
        }
    )
}

Answer 1

It seems that initialising LazyColumn in this way solves my issue

LazyColumn() {
    items(
        count = cartItems.size,
        key = {
            cartItems[it].cartItem.id
        },
        itemContent = { index ->
            val cartItemData = cartItems[index]
            CartItemWithActions(data = cartItemData)
            Divider(
                color = colorResource(id =R.color.separator_line)
            )
        }
    )
}

However I still don't know why