diff --git a/apps/explorer/config/config.exs b/apps/explorer/config/config.exs
index 7e17c086b0..2fdcb9f40b 100644
--- a/apps/explorer/config/config.exs
+++ b/apps/explorer/config/config.exs
@@ -15,7 +15,9 @@ config :explorer,
       "homestead,tangerineWhistle,spuriousDragon,byzantium,constantinople,petersburg,default",
   include_uncles_in_average_block_time:
     if(System.get_env("UNCLES_IN_AVERAGE_BLOCK_TIME") == "true", do: true, else: false),
-  healthy_blocks_period: System.get_env("HEALTHY_BLOCKS_PERIOD") || :timer.minutes(5)
+  healthy_blocks_period: System.get_env("HEALTHY_BLOCKS_PERIOD") || :timer.minutes(5),
+  index_internal_transactions_for_token_transfers:
+    if(System.get_env("INTERNAL_TRANSACTIONOS_FOR_TOKEN_TRANSFERS") == "true", do: true, else: false)
 
 average_block_period =
   case Integer.parse(System.get_env("AVERAGE_BLOCK_CACHE_PERIOD", "")) do
diff --git a/apps/explorer/lib/explorer/chain/import/runner/transactions.ex b/apps/explorer/lib/explorer/chain/import/runner/transactions.ex
index 5075ab5a09..23d3134901 100644
--- a/apps/explorer/lib/explorer/chain/import/runner/transactions.ex
+++ b/apps/explorer/lib/explorer/chain/import/runner/transactions.ex
@@ -155,12 +155,20 @@ defmodule Explorer.Chain.Import.Runner.Transactions do
     )
   end
 
-  defp put_internal_transactions_indexed_at(changes_list, timestamp, token_transfer_transaction_hash_set)
+  defp put_internal_transactions_indexed_at(changes_list, timestamp, token_transfer_transaction_hash_set) do
+    if Application.get_env(:explorer, :index_internal_transactions_for_token_transfers) do
+      changes
+    else
+      do_put_internal_transactions_indexed_at(changes_list, timestamp, token_transfer_transaction_hash_set)
+    end
+  end
+
+  defp do_put_internal_transactions_indexed_at(changes_list, timestamp, token_transfer_transaction_hash_set)
        when is_list(changes_list) do
     Enum.map(changes_list, &put_internal_transactions_indexed_at(&1, timestamp, token_transfer_transaction_hash_set))
   end
 
-  defp put_internal_transactions_indexed_at(%{hash: hash} = changes, timestamp, token_transfer_transaction_hash_set) do
+  defp do_put_internal_transactions_indexed_at(%{hash: hash} = changes, timestamp, token_transfer_transaction_hash_set) do
     token_transfer? = to_string(hash) in token_transfer_transaction_hash_set
 
     if put_internal_transactions_indexed_at?(changes, token_transfer?) do
diff --git a/docs/env-variables.md b/docs/env-variables.md
index 503689d091..f625166809 100644
--- a/docs/env-variables.md
+++ b/docs/env-variables.md
@@ -69,3 +69,4 @@ $ export NETWORK=POA
 | `COIN_GECKO_ID` | | CoinGecko coin id required for fetching an exchange rate | poa-network | v2.0.4+ | | master |
 | `EMISSION_FORMAT` | | Should be set to `POA` if you have block emission indentical to POA Network. This env var is used only if `CHAIN_SPEC_PATH` is set | `STANDARD` | v2.0.4+ | | |
 | `REWARDS_CONTRACT_ADDRESS` | | Emission rewards contract address. This env var is used only if `EMISSION_FORMAT` is set to `POA` | `0xeca443e8e1ab29971a45a9c57a6a9875701698a5` | v2.0.4+ | | |
+| `INTERNAL_TRANSACTIONOS_FOR_TOKEN_TRANSFERS` | | Does not applicable for parity because we fetch all transactions for it. If set to true fetches internal transactions for simple token transfers transactions. It's disabled by default to increase internal transactions indexing speed | `false` | master | | |