diff --git a/test_runner/fixtures/neon_fixtures.py b/test_runner/fixtures/neon_fixtures.py
index 3848aee05a..3b87f290b8 100644
--- a/test_runner/fixtures/neon_fixtures.py
+++ b/test_runner/fixtures/neon_fixtures.py
@@ -299,7 +299,9 @@ class PgProtocol:
         # change it by calling "SET statement_timeout" after
         # connecting.
         options = result.get('options', '')
-        result['options'] = f'-cstatement_timeout=120s {options}'
+        if "statement_timeout" not in options:
+            options = f'-cstatement_timeout=120s {options}'
+        result['options'] = options
         return result
 
     # autocommit=True here by default because that's what we need most of the time
diff --git a/test_runner/performance/test_wal_backpressure.py b/test_runner/performance/test_wal_backpressure.py
index 61c5bea64a..bbb5ddecab 100644
--- a/test_runner/performance/test_wal_backpressure.py
+++ b/test_runner/performance/test_wal_backpressure.py
@@ -155,7 +155,7 @@ def start_pgbench_intensive_initialization(env: PgCompare, scale: int, done_even
             f'-s{scale}',
             '-i',
             '-Idtg',
-            env.pg.connstr(options='-cstatement_timeout=360s')
+            env.pg.connstr(options='-cstatement_timeout=600s')
         ])
 
     done_event.set()