diff --git a/demo.py b/demo.py
index 387aae2..b684344 100644
--- a/demo.py
+++ b/demo.py
@@ -254,7 +254,7 @@ def main():
         default=1,
         help="Streaming only. Every N-th frame after scale frames is kept as a keyframe. 1 = every frame.",
     )
-    parser.add_argument("--kv_cache_sliding_window", type=int, default=64)
+    parser.add_argument("--kv_cache_sliding_window", type=int, default=16)
     parser.add_argument("--kv_cache_scale_frames", type=int, default=8)
     parser.add_argument("--use_sdpa", action="store_true", default=False,
                         help="Use SDPA backend (no flashinfer needed). Default: FlashInfer")
@@ -340,8 +340,7 @@ def main():
                 num_scale_frames=args.num_scale_frames,
             )
 
-    t_infer = time.time() - t0
-    print(f"Inference done: {t_infer:.1f}s ({num_frames / t_infer:.1f} FPS)")
+    print(f"Inference done in {time.time() - t0:.1f}s")
 
     # ── Post-process ─────────────────────────────────────────────────────────
     predictions, images_cpu = postprocess(predictions, images)