diff --git a/tests/perf/stage_configs/qwen3_omni.yaml b/tests/perf/stage_configs/qwen3_omni.yaml
index 802f8dd24..fd5586b94 100644
--- a/tests/perf/stage_configs/qwen3_omni.yaml
+++ b/tests/perf/stage_configs/qwen3_omni.yaml
@@ -47,7 +47,7 @@ stage_args:
       model_arch: Qwen3OmniMoeForConditionalGeneration
       worker_type: ar
       scheduler_cls: vllm_omni.core.sched.omni_ar_scheduler.OmniARScheduler
-      gpu_memory_utilization: 0.6
+      gpu_memory_utilization: 0.45
       enforce_eager: false
       trust_remote_code: true
       engine_output_type: latent  # Output codec codes for code2wav