diff --git a/comfy/cli_args.py b/comfy/cli_args.py
index 79ecbd682..81f29f098 100644
--- a/comfy/cli_args.py
+++ b/comfy/cli_args.py
@@ -136,8 +136,9 @@ parser.add_argument("--deterministic", action="store_true", help="Make pytorch u
 class PerformanceFeature(enum.Enum):
     Fp16Accumulation = "fp16_accumulation"
     Fp8MatrixMultiplication = "fp8_matrix_mult"
+    CublasOps = "cublas_ops"
 
-parser.add_argument("--fast", nargs="*", type=PerformanceFeature, help="Enable some untested and potentially quality deteriorating optimizations. --fast with no arguments enables everything. You can pass a list specific optimizations if you only want to enable specific ones. Current valid optimizations: fp16_accumulation fp8_matrix_mult")
+parser.add_argument("--fast", nargs="*", type=PerformanceFeature, help="Enable some untested and potentially quality deteriorating optimizations. --fast with no arguments enables everything. You can pass a list specific optimizations if you only want to enable specific ones. Current valid optimizations: fp16_accumulation fp8_matrix_mult cublas_ops")
 
 parser.add_argument("--dont-print-server", action="store_true", help="Don't print server output.")
 parser.add_argument("--quick-test-for-ci", action="store_true", help="Quick test for CI.")
diff --git a/comfy/ops.py b/comfy/ops.py
index 116b08fc2..9a5c1ee99 100644
--- a/comfy/ops.py
+++ b/comfy/ops.py
@@ -388,7 +388,12 @@ def pick_operations(weight_dtype, compute_dtype, load_device=None, disable_fast_
     ):
         return fp8_ops
 
-    if CUBLAS_IS_AVAILABLE and weight_dtype == torch.float16 and (compute_dtype == torch.float16 or compute_dtype is None):
+    if (
+        PerformanceFeature.CublasOps in args.fast and
+        CUBLAS_IS_AVAILABLE and
+        weight_dtype == torch.float16 and
+        (compute_dtype == torch.float16 or compute_dtype is None)
+    ):
         logging.info("Using cublas ops")
         return cublas_ops