RecyclerView with pagination inside NestedScrollView lagging while data submit - pagination

Question

I have nested scroll view and inside that has 4 recycler views(horizontal, vertical & grid), the last recycler view is vertical and it consists of nested recycler(horizontal) also.
I have used the paging 3 library for the last recycler and loading 5 items once. But while inserting data to the recycler view my app is getting freeze. This is the image of my app screen
viewModel.fullPriceListItem.observe(this#MainFragment) {
when (it) {
is Resource.Success -> {
isApiCallON = false
binding.pbPagination.visibility = View.GONE
if (KeyConstants.SUCCESS == it.value?.status ?: 0) {
if (isFreeDelivery!=null && KeyConstants.isFirstTime) {
showFreeDeliveryDialog(isFreeDelivery!!)
KeyConstants.isFirstTime = false
}
try{
if (it.value?.data?.isNotEmpty() == true && !isThisLastPage) {
pageNum++
enablePagination(
binding.nestedSv,
binding.rvCheckRegularMenu
)
}else {
isThisLastPage = true
if (!it?.value?.isclosed!!){
requestModel = CommonHomeModel(
latitude = getPrefrenceStringValue(
requireContext(),
latitude
),
longitude = getPrefrenceStringValue(
requireContext(),
longitude
),
distance = getPrefrenceStringValue(
requireContext(),
distance
),
foodType = BOTH,
limit = 5,
token = getPrefrenceStringValue(
requireContext(),
jwtToken
),
userId = getPrefrenceStringValue(
requireContext(),
_id
),
page = pageNum,
isclosed = true
)
pageNum ++
binding.pbPagination.visibility = View.VISIBLE
}
isApiCallON = true
}
if (it.value?.orderCount != null) {
if (it.value?.orderCount == 1) {
AnalyticsEventMethod.MinimumOneOrder(requireContext())
}
}
if (pageNum > 2 && it.value?.data?.isNotEmpty() == true) {
fullPriceListItem?.addAll(it.value?.data?.toMutableList()!!)
binding.rvCheckRegularMenu.adapter?.notifyItemChanged(pageNum*5)
} else if (pageNum == 2){
fullPriceListItem = (it.value?.data?.toMutableList()!!)
binding.rvCheckRegularMenu.layoutManager =
LinearLayoutManager(
requireContext(),
LinearLayoutManager.VERTICAL,
false
)
binding.rvCheckRegularMenu.adapter = RestaurantHomeAdapter(
this#MainFragment,
requireContext(),
fullPriceListItem,
"FullPrice",
this#MainFragment,
it.value?.data?.toMutableList()!!,
filterRequestModel
)
if (it.value?.totalpage?:1 > pageNum && pageNum <=4 && !isThisLastPage){
binding.pbPagination.visibility = View.VISIBLE
requestModel = CommonHomeModel(
latitude = getPrefrenceStringValue(requireContext(), latitude),
longitude = getPrefrenceStringValue(requireContext(), longitude),
distance = getPrefrenceStringValue(requireContext(), distance),
foodType = BOTH,
limit = 5,
token = getPrefrenceStringValue(requireContext(), jwtToken),
userId = getPrefrenceStringValue(requireContext(), _id),
page = pageNum,
isclosed = false
)
}
}
if (binding.rvCheckRegularMenu.adapter?.itemCount!! > 0){
binding.rvCheckRegularMenu.visibility = View.VISIBLE
binding.txtPopularRestaurant.visibility = View.VISIBLE
}
binding.rvCheckRegularMenu.itemAnimator = DefaultItemAnimator()
}catch (e: Exception){
e.printStackTrace()
Log.e("mainfragment","Excp: ${e.printStackTrace()}")
}
binding.shimmerPopular.shimmerContainer.stopShimmer()
binding.shimmerPopular.shimmerContainer.visibility = View.GONE
} else if (KeyConstants.FAILURE <= it.value?.status ?: 0) {
binding.shimmerPopular.shimmerContainer.stopShimmer()
binding.shimmerPopular.shimmerContainer.visibility = View.GONE
Log.e("mainfragment","fail api")
}
}
is Resource.Failure -> {
Log.e("mainfragment","resource fail:$it")
binding.shimmerPopular.shimmerContainer.stopShimmer()
binding.shimmerPopular.root.visibility = View.GONE
}
else -> {}
}
// stopShimmer()
}
I tried the pagination with paging 3 library and without library also using nested scroll view listener. But both the options making lag while data inserting to the recycler view. I want my page should scroll vertically smoothly.