diff --git a/configs/full_pipeline_1080p.json b/configs/full_pipeline_1080p.json
index 702eaab..ae5633f 100644
--- a/configs/full_pipeline_1080p.json
+++ b/configs/full_pipeline_1080p.json
@@ -69,6 +69,8 @@
           "role": "filter",
           "enable": true,
           "cpu_affinity": [4],
+          "infer_fps": 2,
+          "infer_phase_ms": 120,
           "model_path": "./models/mobilefacenet_arcface.rknn",
           "align": true,
           "emit_embedding": false,
diff --git a/plugins/ai_face_recog/ai_face_recog_node.cpp b/plugins/ai_face_recog/ai_face_recog_node.cpp
index 31a5a42..72640c6 100644
--- a/plugins/ai_face_recog/ai_face_recog_node.cpp
+++ b/plugins/ai_face_recog/ai_face_recog_node.cpp
@@ -644,6 +644,20 @@ public:
     bool Init(const SimpleJson& config, const NodeContext& ctx) override {
         id_ = config.ValueOr<std::string>("id", "face_recog");
         model_path_ = config.ValueOr<std::string>("model_path", "");
+        infer_interval_ms_ = std::max<int64_t>(
+            0, static_cast<int64_t>(config.ValueOr<int>("infer_interval_ms", 0)));
+        if (infer_interval_ms_ <= 0) {
+            const double infer_fps = config.ValueOr<double>("infer_fps", 0.0);
+            if (infer_fps > 0.0) {
+                infer_interval_ms_ = static_cast<int64_t>(1000.0 / infer_fps);
+                if (infer_interval_ms_ < 1) infer_interval_ms_ = 1;
+            }
+        }
+        infer_phase_ms_ = std::max<int64_t>(
+            0, static_cast<int64_t>(config.ValueOr<int>("infer_phase_ms", 0)));
+        if (infer_interval_ms_ > 0 && infer_phase_ms_ >= infer_interval_ms_) {
+            infer_phase_ms_ %= infer_interval_ms_;
+        }
         std::shared_ptr<const FaceRecogConfigSnapshot> snap;
         BuildFaceRecogConfigSnapshot(config, nullptr, snap);
         {
@@ -706,7 +720,9 @@ public:
         const float thr_accept = cfg ? cfg->thr_accept : 0.0f;
         const float thr_margin = cfg ? cfg->thr_margin : 0.0f;
         LogInfo("[ai_face_recog] start id=" + id_ + " align=" + std::string(align ? "true" : "false") +
-                " thr_accept=" + std::to_string(thr_accept) + " thr_margin=" + std::to_string(thr_margin));
+                " thr_accept=" + std::to_string(thr_accept) +
+                " thr_margin=" + std::to_string(thr_margin) +
+                " infer_interval_ms=" + std::to_string(infer_interval_ms_));
         return true;
     }
 
@@ -763,6 +779,16 @@ public:
         if (!frame) return NodeStatus::DROP;
 
 #if defined(RK3588_ENABLE_RKNN)
+        if (infer_interval_ms_ > 0 && frame->pts > 0) {
+            const int64_t pts_ms = static_cast<int64_t>(frame->pts / 1000ULL);
+            const int64_t effective_pts_ms = pts_ms + infer_phase_ms_;
+            const int64_t delta_ms = effective_pts_ms - last_infer_pts_ms_;
+            if (last_infer_pts_ms_ > 0 && delta_ms > 0 && delta_ms < infer_interval_ms_) {
+                Push(frame);
+                return NodeStatus::OK;
+            }
+            last_infer_pts_ms_ = effective_pts_ms;
+        }
         Run(frame);
 #endif
         Push(frame);
@@ -958,6 +984,9 @@ private:
     ModelHandle model_handle_ = kInvalidModelHandle;
     int model_w_ = 112;
     int model_h_ = 112;
+    int64_t infer_interval_ms_ = 0;
+    int64_t infer_phase_ms_ = 0;
+    int64_t last_infer_pts_ms_ = 0;
 };
 
 REGISTER_NODE(AiFaceRecogNode, "ai_face_recog");