diff --git a/experiments/pro6000/dsv4_pro6000_sglang_tp16/config.env b/experiments/pro6000/dsv4_pro6000_sglang_tp16/config.env
index f6c29da..f51fad9 100644
--- a/experiments/pro6000/dsv4_pro6000_sglang_tp16/config.env
+++ b/experiments/pro6000/dsv4_pro6000_sglang_tp16/config.env
@@ -35,7 +35,7 @@ NCCL_DEBUG="${NCCL_DEBUG:-WARN}"
 # max_running_requests must >= max concurrency tested (128) to avoid queueing
 # cuda_graph_max_bs_decode must >= max concurrent batch size for accurate decode perf
 MEM_FRACTION_STATIC="${MEM_FRACTION_STATIC:-0.9}"
-CUDA_GRAPH_MAX_BS_DECODE="${CUDA_GRAPH_MAX_BS_DECODE:-256}"
+CUDA_GRAPH_MAX_BS_DECODE="${CUDA_GRAPH_MAX_BS_DECODE:-64}"
 MAX_RUNNING_REQUESTS="${MAX_RUNNING_REQUESTS:-256}"
 
 # ---- Benchmark ----