diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index 3593c832d..34b871ee7 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -488,8 +488,9 @@ rtc_server {
     # default: off
     merge_nalus     off;
     # Whether enable the perf stat at http://localhost:1985/api/v1/perf
-    # default: on
-    perf_stat       on;
+    # TODO: FIXME: We should enable it when refined.
+    # default: off
+    perf_stat       off;
     # For RTP packet and its payload cache.
     rtp_cache {
         # Whether enable the RTP packet cache.
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index 4d6771bf0..1e31d9c76 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -4887,7 +4887,7 @@ bool SrsConfig::get_rtc_server_merge_nalus()
 
 bool SrsConfig::get_rtc_server_perf_stat()
 {
-    static bool DEFAULT = true;
+    static bool DEFAULT = false;
 
     SrsConfDirective* conf = root->get("rtc_server");
     if (!conf) {
@@ -4899,7 +4899,7 @@ bool SrsConfig::get_rtc_server_perf_stat()
         return DEFAULT;
     }
 
-    return SRS_CONF_PERFER_TRUE(conf->arg0());
+    return SRS_CONF_PERFER_FALSE(conf->arg0());
 }
 
 SrsConfDirective* SrsConfig::get_rtc_server_rtp_cache()
diff --git a/trunk/src/app/srs_app_rtc_conn.cpp b/trunk/src/app/srs_app_rtc_conn.cpp
index 894d5c65f..23e7b6dc6 100644
--- a/trunk/src/app/srs_app_rtc_conn.cpp
+++ b/trunk/src/app/srs_app_rtc_conn.cpp
@@ -550,10 +550,13 @@ srs_error_t SrsRtcPlayStream::cycle()
     realtime = _srs_config->get_realtime_enabled(req_->vhost, true);
     mw_msgs = _srs_config->get_mw_msgs(req_->vhost, realtime, true);
 
+    bool stat_enabled = _srs_config->get_rtc_server_perf_stat();
+    SrsStatistic* stat = SrsStatistic::instance();
+
     // TODO: FIXME: Add cost in ms.
     SrsContextId cid = source->source_id();
-    srs_trace("RTC: start play url=%s, source_id=%s/%s, realtime=%d, mw_msgs=%d", req_->get_stream_url().c_str(),
-        cid.c_str(), source->pre_source_id().c_str(), realtime, mw_msgs);
+    srs_trace("RTC: start play url=%s, source_id=%s/%s, realtime=%d, mw_msgs=%d, stat=%d", req_->get_stream_url().c_str(),
+        cid.c_str(), source->pre_source_id().c_str(), realtime, mw_msgs, stat_enabled);
 
     SrsErrorPithyPrint* epp = new SrsErrorPithyPrint();
     SrsAutoFree(SrsErrorPithyPrint, epp);
@@ -561,9 +564,6 @@ srs_error_t SrsRtcPlayStream::cycle()
     SrsPithyPrint* pprint = SrsPithyPrint::create_rtc_play();
     SrsAutoFree(SrsPithyPrint, pprint);
 
-    bool stat_enabled = _srs_config->get_rtc_server_perf_stat();
-    SrsStatistic* stat = SrsStatistic::instance();
-
     // TODO: FIXME: Use cache for performance?
     vector<SrsRtpPacket2*> pkts;
     uint64_t total_pkts = 0;