diff --git a/src/frostfs_testlib/s3/aws_cli_client.py b/src/frostfs_testlib/s3/aws_cli_client.py
index f6488f5..3568037 100644
--- a/src/frostfs_testlib/s3/aws_cli_client.py
+++ b/src/frostfs_testlib/s3/aws_cli_client.py
@@ -91,7 +91,6 @@ class AwsCliClient(S3ClientWrapper):
         if location_constraint:
             cmd += f" --create-bucket-configuration LocationConstraint={location_constraint}"
         self.local_shell.exec(cmd)
-        sleep(S3_SYNC_WAIT_TIME)
 
         return bucket
 
@@ -106,7 +105,6 @@ class AwsCliClient(S3ClientWrapper):
     def delete_bucket(self, bucket: str) -> None:
         cmd = f"aws {self.common_flags} s3api delete-bucket --bucket {bucket} --endpoint {self.s3gate_endpoint} --profile {self.profile}"
         self.local_shell.exec(cmd, command_options)
-        sleep(S3_SYNC_WAIT_TIME)
 
     @reporter.step("Head bucket S3")
     def head_bucket(self, bucket: str) -> None:
@@ -397,7 +395,6 @@ class AwsCliClient(S3ClientWrapper):
         )
         output = self.local_shell.exec(cmd, command_options).stdout
         response = self._to_json(output)
-        sleep(S3_SYNC_WAIT_TIME)
         return response
 
     @reporter.step("Delete object S3")
@@ -408,7 +405,6 @@ class AwsCliClient(S3ClientWrapper):
             f"--key {key} {version} --endpoint {self.s3gate_endpoint} --profile {self.profile}"
         )
         output = self.local_shell.exec(cmd, command_options).stdout
-        sleep(S3_SYNC_WAIT_TIME)
         return self._to_json(output)
 
     @reporter.step("Delete object versions S3")
@@ -435,7 +431,6 @@ class AwsCliClient(S3ClientWrapper):
             f"--delete file://{file_path} --endpoint {self.s3gate_endpoint} --profile {self.profile}"
         )
         output = self.local_shell.exec(cmd, command_options).stdout
-        sleep(S3_SYNC_WAIT_TIME)
         return self._to_json(output)
 
     @reporter.step("Delete object versions S3 without delete markers")
diff --git a/src/frostfs_testlib/s3/boto3_client.py b/src/frostfs_testlib/s3/boto3_client.py
index bdf7a9f..a8a7828 100644
--- a/src/frostfs_testlib/s3/boto3_client.py
+++ b/src/frostfs_testlib/s3/boto3_client.py
@@ -134,7 +134,6 @@ class Boto3ClientWrapper(S3ClientWrapper):
 
         s3_bucket = self.boto3_client.create_bucket(**params)
         log_command_execution(f"Created S3 bucket {bucket}", s3_bucket)
-        sleep(S3_SYNC_WAIT_TIME)
         return bucket
 
     @reporter.step("List buckets S3")
@@ -155,7 +154,6 @@ class Boto3ClientWrapper(S3ClientWrapper):
     def delete_bucket(self, bucket: str) -> None:
         response = self.boto3_client.delete_bucket(Bucket=bucket)
         log_command_execution("S3 Delete bucket result", response)
-        sleep(S3_SYNC_WAIT_TIME)
 
     @reporter.step("Head bucket S3")
     @report_error
@@ -364,7 +362,6 @@ class Boto3ClientWrapper(S3ClientWrapper):
         params = {self._to_s3_param(param): value for param, value in locals().items() if param not in ["self"] and value is not None}
         response = self.boto3_client.delete_object(**params)
         log_command_execution("S3 Delete object result", response)
-        sleep(S3_SYNC_WAIT_TIME)
         return response
 
     @reporter.step("Delete objects S3")
@@ -375,7 +372,6 @@ class Boto3ClientWrapper(S3ClientWrapper):
         assert (
             "Errors" not in response
         ), f'The following objects have not been deleted: {[err_info["Key"] for err_info in response["Errors"]]}.\nError Message: {response["Errors"]["Message"]}'
-        sleep(S3_SYNC_WAIT_TIME)
         return response
 
     @reporter.step("Delete object versions S3")
@@ -413,8 +409,10 @@ class Boto3ClientWrapper(S3ClientWrapper):
         grant_write: Optional[str] = None,
         grant_read: Optional[str] = None,
     ) -> list:
-        # pytest.skip("Method put_object_acl is not supported by boto3 client")
-        raise NotImplementedError("Unsupported for boto3 client")
+        params = {self._to_s3_param(param): value for param, value in locals().items() if param not in ["self"] and value is not None}
+        response = self.boto3_client.put_object_acl(**params)
+        log_command_execution("S3 put object ACL", response)
+        return response.get("Grants")
 
     @reporter.step("Get object ACL")
     @report_error
diff --git a/src/frostfs_testlib/steps/s3/s3_helper.py b/src/frostfs_testlib/steps/s3/s3_helper.py
index ab0cee3..9b85766 100644
--- a/src/frostfs_testlib/steps/s3/s3_helper.py
+++ b/src/frostfs_testlib/steps/s3/s3_helper.py
@@ -47,7 +47,6 @@ def set_bucket_versioning(s3_client: S3ClientWrapper, bucket: str, status: Versi
     if status == VersioningStatus.UNDEFINED:
         return
 
-    s3_client.get_bucket_versioning_status(bucket)
     s3_client.put_bucket_versioning(bucket, status=status)
     bucket_status = s3_client.get_bucket_versioning_status(bucket)
     assert bucket_status == status.value, f"Expected {bucket_status} status. Got {status.value}"
diff --git a/src/frostfs_testlib/storage/controllers/cluster_state_controller.py b/src/frostfs_testlib/storage/controllers/cluster_state_controller.py
index 4003dfd..3c6c268 100644
--- a/src/frostfs_testlib/storage/controllers/cluster_state_controller.py
+++ b/src/frostfs_testlib/storage/controllers/cluster_state_controller.py
@@ -440,9 +440,11 @@ class ClusterStateController:
         self.await_node_status(status, wallet, cluster_node)
 
     @wait_for_success(80, 8, title="Wait for node status become {status}")
-    def await_node_status(self, status: NodeStatus, wallet: WalletInfo, cluster_node: ClusterNode):
+    def await_node_status(self, status: NodeStatus, wallet: WalletInfo, cluster_node: ClusterNode, checker_node: ClusterNode = None):
         frostfs_cli = FrostfsCli(self.shell, FROSTFS_CLI_EXEC, wallet.config_path)
-        netmap = NetmapParser.snapshot_all_nodes(frostfs_cli.netmap.snapshot(cluster_node.storage_node.get_rpc_endpoint()).stdout)
+        if not checker_node:
+            checker_node = cluster_node
+        netmap = NetmapParser.snapshot_all_nodes(frostfs_cli.netmap.snapshot(checker_node.storage_node.get_rpc_endpoint()).stdout)
         netmap = [node for node in netmap if cluster_node.host_ip == node.node]
         if status == NodeStatus.OFFLINE:
             assert cluster_node.host_ip not in netmap, f"{cluster_node.host_ip} not in Offline"
diff --git a/src/frostfs_testlib/testing/parallel.py b/src/frostfs_testlib/testing/parallel.py
index 1c30cec..9c36118 100644
--- a/src/frostfs_testlib/testing/parallel.py
+++ b/src/frostfs_testlib/testing/parallel.py
@@ -2,6 +2,8 @@ import itertools
 from concurrent.futures import Future, ThreadPoolExecutor
 from typing import Callable, Collection, Optional, Union
 
+MAX_WORKERS = 50
+
 
 def parallel(
     fn: Union[Callable, list[Callable]],
@@ -54,7 +56,7 @@ def _run_by_fn_list(fn_list: list[Callable], *args, **kwargs) -> list[Future]:
 
     futures: list[Future] = []
 
-    with ThreadPoolExecutor(max_workers=len(fn_list)) as executor:
+    with ThreadPoolExecutor(max_workers=min(len(fn_list), MAX_WORKERS)) as executor:
         for fn in fn_list:
             task_args = _get_args(*args)
             task_kwargs = _get_kwargs(**kwargs)
@@ -67,7 +69,7 @@ def _run_by_fn_list(fn_list: list[Callable], *args, **kwargs) -> list[Future]:
 def _run_by_items(fn: Callable, parallel_items: Collection, *args, **kwargs) -> list[Future]:
     futures: list[Future] = []
 
-    with ThreadPoolExecutor(max_workers=len(parallel_items)) as executor:
+    with ThreadPoolExecutor(max_workers=min(len(parallel_items), MAX_WORKERS)) as executor:
         for item in parallel_items:
             task_args = _get_args(*args)
             task_kwargs = _get_kwargs(**kwargs)