diff --git a/core/application/chain_spec.hpp b/core/application/chain_spec.hpp
index 05781c5762..ff801359b3 100644
--- a/core/application/chain_spec.hpp
+++ b/core/application/chain_spec.hpp
@@ -74,6 +74,26 @@ namespace kagome::application {
      */
     virtual const ChildrenDefaultRawData &getGenesisChildrenDefaultSection()
         const = 0;
+
+    bool idStartsWith(std::string_view prefix) const {
+      return id().rfind(prefix, 0) == 0;
+    }
+
+    bool isKusama() const {
+      return idStartsWith("kusama") || idStartsWith("ksm");
+    }
+
+    bool isRococo() const {
+      return idStartsWith("rococo") || idStartsWith("rco");
+    }
+
+    bool isWococo() const {
+      return idStartsWith("wococo") || idStartsWith("wco");
+    }
+
+    bool isVersi() const {
+      return idStartsWith("versi") || idStartsWith("vrs");
+    }
   };
 
 }  // namespace kagome::application
diff --git a/core/consensus/babe/impl/babe_impl.cpp b/core/consensus/babe/impl/babe_impl.cpp
index 81bdd842d7..862cad5ba6 100644
--- a/core/consensus/babe/impl/babe_impl.cpp
+++ b/core/consensus/babe/impl/babe_impl.cpp
@@ -306,7 +306,8 @@ namespace kagome::consensus::babe {
       if (current_state_ == Babe::State::HEADERS_LOADING) {
         current_state_ = Babe::State::HEADERS_LOADED;
         startStateSyncing(peer_id);
-      } else if (current_state_ == Babe::State::CATCHING_UP) {
+      } else if (current_state_ == Babe::State::CATCHING_UP
+                 or current_state_ == Babe::State::WAIT_REMOTE_STATUS) {
         onSynchronized();
       }
       return;
diff --git a/core/consensus/grandpa/impl/grandpa_impl.cpp b/core/consensus/grandpa/impl/grandpa_impl.cpp
index f3f8e249db..e8f9521ea9 100644
--- a/core/consensus/grandpa/impl/grandpa_impl.cpp
+++ b/core/consensus/grandpa/impl/grandpa_impl.cpp
@@ -23,19 +23,31 @@ namespace kagome::consensus::grandpa {
 
   using authority::IsBlockFinalized;
 
+  namespace {
+    Clock::Duration getGossipDuration(const application::ChainSpec &chain) {
+      // https://github.com/paritytech/polkadot/pull/5448
+      auto slow = chain.isVersi() || chain.isWococo() || chain.isRococo()
+                  || chain.isKusama();
+      return std::chrono::duration_cast<Clock::Duration>(
+          std::chrono::milliseconds{slow ? 2000 : 1000});
+    }
+  }  // namespace
+
   GrandpaImpl::GrandpaImpl(
       std::shared_ptr<application::AppStateManager> app_state_manager,
       std::shared_ptr<Environment> environment,
       std::shared_ptr<crypto::Ed25519Provider> crypto_provider,
       std::shared_ptr<runtime::GrandpaApi> grandpa_api,
       const std::shared_ptr<crypto::Ed25519Keypair> &keypair,
+      const application::ChainSpec &chain_spec,
       std::shared_ptr<Clock> clock,
       std::shared_ptr<libp2p::basic::Scheduler> scheduler,
       std::shared_ptr<authority::AuthorityManager> authority_manager,
       std::shared_ptr<network::Synchronizer> synchronizer,
       std::shared_ptr<network::PeerManager> peer_manager,
       std::shared_ptr<blockchain::BlockTree> block_tree)
-      : environment_{std::move(environment)},
+      : round_time_factor_{getGossipDuration(chain_spec)},
+        environment_{std::move(environment)},
         crypto_provider_{std::move(crypto_provider)},
         grandpa_api_{std::move(grandpa_api)},
         keypair_{keypair},
diff --git a/core/consensus/grandpa/impl/grandpa_impl.hpp b/core/consensus/grandpa/impl/grandpa_impl.hpp
index d3923fdbc3..c0b40887ef 100644
--- a/core/consensus/grandpa/impl/grandpa_impl.hpp
+++ b/core/consensus/grandpa/impl/grandpa_impl.hpp
@@ -12,6 +12,7 @@
 #include <boost/operators.hpp>
 
 #include "application/app_state_manager.hpp"
+#include "application/chain_spec.hpp"
 #include "blockchain/block_tree.hpp"
 #include "consensus/authority/authority_manager.hpp"
 #include "consensus/grandpa/environment.hpp"
@@ -70,6 +71,7 @@ namespace kagome::consensus::grandpa {
                 std::shared_ptr<crypto::Ed25519Provider> crypto_provider,
                 std::shared_ptr<runtime::GrandpaApi> grandpa_api,
                 const std::shared_ptr<crypto::Ed25519Keypair> &keypair,
+                const application::ChainSpec &chain_spec,
                 std::shared_ptr<Clock> clock,
                 std::shared_ptr<libp2p::basic::Scheduler> scheduler,
                 std::shared_ptr<authority::AuthorityManager> authority_manager,
@@ -251,10 +253,7 @@ namespace kagome::consensus::grandpa {
      */
     void loadMissingBlocks();
 
-    // Note: Duration value was gotten from substrate
-    // https://github.com/paritytech/substrate/blob/efbac7be80c6e8988a25339061078d3e300f132d/bin/node-template/node/src/service.rs#L166
-    // Perhaps, 333ms is not enough for normal communication during the round
-    const Clock::Duration round_time_factor_ = std::chrono::milliseconds(333);
+    const Clock::Duration round_time_factor_;
 
     std::shared_ptr<VotingRound> current_round_;
 
diff --git a/core/consensus/grandpa/impl/voting_round_impl.cpp b/core/consensus/grandpa/impl/voting_round_impl.cpp
index bc9ca498b4..65fa05d22b 100644
--- a/core/consensus/grandpa/impl/voting_round_impl.cpp
+++ b/core/consensus/grandpa/impl/voting_round_impl.cpp
@@ -280,7 +280,7 @@ namespace kagome::consensus::grandpa {
             endPrevoteStage();
           }
         },
-        toMilliseconds(duration_ * 2 - (start_time_ - scheduler_->now())));
+        toMilliseconds(duration_ * 2 - (scheduler_->now() - start_time_)));
 
     on_complete_handler_ = [this] {
       if (stage_ == Stage::PREVOTE_RUNS) {
@@ -345,7 +345,7 @@ namespace kagome::consensus::grandpa {
             endPrecommitStage();
           }
         },
-        toMilliseconds(duration_ * 4 - (start_time_ - scheduler_->now())));
+        toMilliseconds(duration_ * 4 - (scheduler_->now() - start_time_)));
 
     on_complete_handler_ = [this] {
       if (stage_ == Stage::PRECOMMIT_RUNS) {
diff --git a/core/injector/application_injector.cpp b/core/injector/application_injector.cpp
index 30c7e90bcc..2c54c57d38 100644
--- a/core/injector/application_injector.cpp
+++ b/core/injector/application_injector.cpp
@@ -1446,6 +1446,7 @@ namespace {
         injector.template create<sptr<crypto::Ed25519Provider>>(),
         injector.template create<sptr<runtime::GrandpaApi>>(),
         session_keys->getGranKeyPair(),
+        injector.template create<const application::ChainSpec &>(),
         injector.template create<sptr<clock::SteadyClock>>(),
         injector.template create<sptr<libp2p::basic::Scheduler>>(),
         injector.template create<sptr<authority::AuthorityManager>>(),