diff --git a/core/src/banking_stage.rs b/core/src/banking_stage.rs
index 19f5824e3e..3166849c20 100644
--- a/core/src/banking_stage.rs
+++ b/core/src/banking_stage.rs
@@ -1372,7 +1372,7 @@ mod tests {
     #[test]
     fn test_banking_stage_shutdown1() {
         let genesis_config = create_genesis_config(2).genesis_config;
-        let bank = Arc::new(Bank::new(&genesis_config));
+        let bank = Arc::new(Bank::new_no_wallclock_throttle(&genesis_config));
         let (verified_sender, verified_receiver) = unbounded();
         let (vote_sender, vote_receiver) = unbounded();
         let (gossip_vote_sender, _gossip_vote_receiver) = unbounded();
@@ -1411,7 +1411,7 @@ mod tests {
         } = create_genesis_config(2);
         genesis_config.ticks_per_slot = 4;
         let num_extra_ticks = 2;
-        let bank = Arc::new(Bank::new(&genesis_config));
+        let bank = Arc::new(Bank::new_no_wallclock_throttle(&genesis_config));
         let start_hash = bank.last_blockhash();
         let (verified_sender, verified_receiver) = unbounded();
         let (vote_sender, vote_receiver) = unbounded();
@@ -1699,7 +1699,7 @@ mod tests {
             mint_keypair,
             ..
         } = create_genesis_config(10_000);
-        let bank = Arc::new(Bank::new(&genesis_config));
+        let bank = Arc::new(Bank::new_no_wallclock_throttle(&genesis_config));
         let start = Arc::new(Instant::now());
         let working_bank = WorkingBank {
             bank: bank.clone(),
@@ -2043,7 +2043,7 @@ mod tests {
             mint_keypair,
             ..
         } = create_slow_genesis_config(10_000);
-        let bank = Arc::new(Bank::new(&genesis_config));
+        let bank = Arc::new(Bank::new_no_wallclock_throttle(&genesis_config));
         let pubkey = solana_sdk::pubkey::new_rand();
 
         let transactions = vec![system_transaction::transfer(
@@ -2170,7 +2170,7 @@ mod tests {
             mint_keypair,
             ..
         } = create_slow_genesis_config(10_000);
-        let bank = Arc::new(Bank::new(&genesis_config));
+        let bank = Arc::new(Bank::new_no_wallclock_throttle(&genesis_config));
         let pubkey = solana_sdk::pubkey::new_rand();
         let pubkey1 = solana_sdk::pubkey::new_rand();
 
@@ -2343,7 +2343,7 @@ mod tests {
             mint_keypair,
             ..
         } = create_slow_genesis_config(10_000);
-        let bank = Arc::new(Bank::new(&genesis_config));
+        let bank = Arc::new(Bank::new_no_wallclock_throttle(&genesis_config));
         let pubkey = solana_sdk::pubkey::new_rand();
         let pubkey1 = solana_sdk::pubkey::new_rand();
         let keypair1 = Keypair::new();
@@ -2471,7 +2471,7 @@ mod tests {
         } = &genesis_config_info;
         let blockstore =
             Blockstore::open(&ledger_path).expect("Expected to be able to open database ledger");
-        let bank = Arc::new(Bank::new(&genesis_config));
+        let bank = Arc::new(Bank::new_no_wallclock_throttle(&genesis_config));
         let (poh_recorder, entry_receiver, record_receiver) = PohRecorder::new(
             bank.tick_height(),
             bank.last_blockhash(),
diff --git a/core/src/poh_service.rs b/core/src/poh_service.rs
index 213d4f1947..6b7efcaae4 100644
--- a/core/src/poh_service.rs
+++ b/core/src/poh_service.rs
@@ -366,7 +366,7 @@ mod tests {
     fn test_poh_service() {
         solana_logger::setup();
         let GenesisConfigInfo { genesis_config, .. } = create_genesis_config(2);
-        let bank = Arc::new(Bank::new(&genesis_config));
+        let bank = Arc::new(Bank::new_no_wallclock_throttle(&genesis_config));
         let prev_hash = bank.last_blockhash();
         let ledger_path = get_tmp_ledger_path!();
         {