diff --git a/tests/integration/test_backup_restore_new/test.py b/tests/integration/test_backup_restore_new/test.py
index 4806625f3f0..56e007dcf5d 100644
--- a/tests/integration/test_backup_restore_new/test.py
+++ b/tests/integration/test_backup_restore_new/test.py
@@ -343,6 +343,13 @@ def test_increment_backup_without_changes():
 
 
 def test_incremental_backup_overflow():
+    if (
+        instance.is_built_with_thread_sanitizer()
+        or instance.is_built_with_memory_sanitizer()
+        or instance.is_built_with_address_sanitizer()
+    ):
+        pytest.skip("The test is slow in builds with sanitizer")
+
     backup_name = new_backup_name()
     incremental_backup_name = new_backup_name()
 
diff --git a/tests/integration/test_backward_compatibility/test_functions.py b/tests/integration/test_backward_compatibility/test_functions.py
index 202a741bfb5..acf4bd28c9b 100644
--- a/tests/integration/test_backward_compatibility/test_functions.py
+++ b/tests/integration/test_backward_compatibility/test_functions.py
@@ -154,6 +154,13 @@ def test_aggregate_states(start_cluster):
 
 
 def test_string_functions(start_cluster):
+    if (
+        upstream.is_built_with_thread_sanitizer()
+        or upstream.is_built_with_memory_sanitizer()
+        or upstream.is_built_with_address_sanitizer()
+    ):
+        pytest.skip("The test is slow in builds with sanitizer")
+
     functions = backward.query(
         """
         SELECT if(NOT empty(alias_to), alias_to, name)