diff --git a/src/qos/bitrate_prober.cc b/src/qos/bitrate_prober.cc
index 531befa..7102fad 100644
--- a/src/qos/bitrate_prober.cc
+++ b/src/qos/bitrate_prober.cc
@@ -93,7 +93,6 @@ void BitrateProber::OnIncomingPacket(DataSize packet_size) {
 
 void BitrateProber::CreateProbeCluster(
     const ProbeClusterConfig& cluster_config) {
-  LOG_WARN("a1");
   while (!clusters_.empty() &&
          (cluster_config.at_time - clusters_.front().requested_at >
               kProbeClusterTimeout ||
diff --git a/src/qos/pacing_controller.cc b/src/qos/pacing_controller.cc
index 5272b6a..7032d6b 100644
--- a/src/qos/pacing_controller.cc
+++ b/src/qos/pacing_controller.cc
@@ -92,9 +92,7 @@ PacingController::~PacingController() = default;
 
 void PacingController::CreateProbeClusters(
     rtc::ArrayView<const ProbeClusterConfig> probe_cluster_configs) {
-  LOG_WARN("b0");
   for (const ProbeClusterConfig probe_cluster_config : probe_cluster_configs) {
-    LOG_WARN("b1");
     prober_.CreateProbeCluster(probe_cluster_config);
   }
 }
@@ -184,11 +182,6 @@ void PacingController::EnqueuePacket(std::unique_ptr<RtpPacketToSend> packet) {
     // queue). Flush any pending packets currently in the queue for that stream
     // in order to get the new keyframe out as quickly as possible.
     packet_queue_.RemovePacketsForSsrc(packet->Ssrc());
-    std::optional<uint32_t> rtx_ssrc =
-        packet_sender_->GetRtxSsrcForMedia(packet->Ssrc());
-    if (rtx_ssrc) {
-      packet_queue_.RemovePacketsForSsrc(*rtx_ssrc);
-    }
   }
 
   prober_.OnIncomingPacket(DataSize::Bytes(packet->payload_size()));
@@ -399,14 +392,11 @@ void PacingController::ProcessPackets() {
   if (now + early_execute_margin < target_send_time) {
     // We are too early, but if queue is empty still allow draining some debt.
     // Probing is allowed to be sent up to kMinSleepTime early.
-    LOG_ERROR("!!!!!!! too early, target_send_time {}, now {}, {}",
-              target_send_time.ms(), now.ms(), early_execute_margin.ms());
     UpdateBudgetWithElapsedTime(UpdateTimeAndGetElapsed(now));
     return;
   }
 
   TimeDelta elapsed_time = UpdateTimeAndGetElapsed(target_send_time);
-
   if (elapsed_time > TimeDelta::Zero()) {
     UpdateBudgetWithElapsedTime(elapsed_time);
   }
@@ -436,7 +426,6 @@ void PacingController::ProcessPackets() {
     std::unique_ptr<RtpPacketToSend> rtp_packet =
         GetPendingPacket(pacing_info, target_send_time, now);
     if (!rtp_packet) {
-      LOG_WARN("rtp_packet == nullptr");
       // No packet available to send, check if we should send padding.
       if (now - target_send_time > kMaxPaddingReplayDuration) {
         // The target send time is more than `kMaxPaddingReplayDuration` behind
diff --git a/src/transport/channel/rtp_video_sender.cpp b/src/transport/channel/rtp_video_sender.cpp
index 001c19b..72b88ba 100644
--- a/src/transport/channel/rtp_video_sender.cpp
+++ b/src/transport/channel/rtp_video_sender.cpp
@@ -55,8 +55,7 @@ void RtpVideoSender::Enqueue(
   for (auto& rtp_packet : rtp_packets) {
     std::unique_ptr<webrtc::RtpPacketToSend> rtp_packet_to_send(
         static_cast<webrtc::RtpPacketToSend*>(rtp_packet.release()));
-    rtp_packet_to_send->set_capture_time(
-        webrtc::Timestamp::Millis(capture_timestamp_ms));
+    rtp_packet_to_send->set_capture_time(clock_->CurrentTime());
     rtp_packet_to_send->set_transport_sequence_number(transport_seq_++);
     rtp_packet_to_send->set_packet_type(webrtc::RtpPacketMediaType::kVideo);
     // rtp_packet_queue_.push(std::move(rtp_packet_to_send));
diff --git a/src/transport/ice_transport_controller.cpp b/src/transport/ice_transport_controller.cpp
index 1d1b771..fded51b 100644
--- a/src/transport/ice_transport_controller.cpp
+++ b/src/transport/ice_transport_controller.cpp
@@ -56,6 +56,8 @@ void IceTransportController::Create(
   packet_sender_ = std::make_shared<PacketSenderImp>(ice_agent, webrtc_clock_);
   packet_sender_->SetPacingRates(DataRate::BitsPerSec(300000),
                                  DataRate::Zero());
+  packet_sender_->SetSendBurstInterval(TimeDelta::Millis(40));
+  packet_sender_->SetQueueTimeLimit(TimeDelta::Millis(2000));
   packet_sender_->SetOnSentPacketFunc(
       [this](const webrtc::RtpPacketToSend& packet) {
         if (ice_agent_) {
diff --git a/src/transport/packet_sender/packet_sender_imp.cpp b/src/transport/packet_sender/packet_sender_imp.cpp
index fd2d9e6..3b6896a 100644
--- a/src/transport/packet_sender/packet_sender_imp.cpp
+++ b/src/transport/packet_sender/packet_sender_imp.cpp
@@ -16,7 +16,8 @@ PacketSenderImp::PacketSenderImp(std::shared_ptr<IceAgent> ice_agent,
       is_started_(false),
       is_shutdown_(false),
       packet_size_(/*alpha=*/0.95),
-      include_overhead_(false) {}
+      include_overhead_(false),
+      last_send_time_(webrtc::Timestamp::Millis(0)) {}
 
 PacketSenderImp::~PacketSenderImp() {}
 
@@ -89,11 +90,6 @@ void PacketSenderImp::EnqueuePackets(
     }
     MaybeProcessPackets(webrtc::Timestamp::MinusInfinity());
   });
-
-  // webrtc::PacedPacketInfo cluster_info;
-  // for (auto &packet : packets) {
-  //   SendPacket(std::move(packet), cluster_info);
-  // }
 }
 
 void PacketSenderImp::RemovePacketsForSsrc(uint32_t ssrc) {
@@ -157,9 +153,7 @@ void PacketSenderImp::OnStatsUpdated(const Stats &stats) {
 }
 
 void PacketSenderImp::MaybeScheduleProcessPackets() {
-  LOG_ERROR("x1");
   if (!processing_packets_) {
-    LOG_ERROR("x2");
     MaybeProcessPackets(webrtc::Timestamp::MinusInfinity());
   }
 }
diff --git a/src/transport/packet_sender/packet_sender_imp.h b/src/transport/packet_sender/packet_sender_imp.h
index 70bbbcd..03b3c2a 100644
--- a/src/transport/packet_sender/packet_sender_imp.h
+++ b/src/transport/packet_sender/packet_sender_imp.h
@@ -61,6 +61,12 @@ class PacketSenderImp : public PacketSender,
 
       packet->UpdateSequenceNumber(ssrc_seq_[packet->Ssrc()]++);
 
+      webrtc::Timestamp now = clock_->CurrentTime();
+      webrtc::TimeDelta interval = now - last_send_time_;
+      webrtc::TimeDelta delay = now - packet->capture_time();
+      LOG_WARN("interval: {}, delay: {}", interval.ms(), delay.seconds());
+      last_send_time_ = now;
+
       on_sent_packet_func_(*packet);
     }
   }
@@ -216,6 +222,8 @@ class PacketSenderImp : public PacketSender,
   TaskQueue task_queue_;
   int64_t transport_seq_ = 0;
   std::map<int32_t, int16_t> ssrc_seq_;
+
+  webrtc::Timestamp last_send_time_;
 };
 
 #endif
\ No newline at end of file