diff --git a/modules/video_coding/utility/quality_scaler.cc b/modules/video_coding/utility/quality_scaler.cc
index 7ecb340ea4..4b71f90307 100644
--- a/modules/video_coding/utility/quality_scaler.cc
+++ b/modules/video_coding/utility/quality_scaler.cc
@@ -260,21 +260,6 @@ void QualityScaler::ReportQp(int qp, int64_t time_sent_us) {
     qp_smoother_low_->Add(qp, time_sent_us);
 }
 
-bool QualityScaler::QpFastFilterLow() const {
-  RTC_DCHECK_RUN_ON(&task_checker_);
-  size_t num_frames = config_.use_all_drop_reasons
-                          ? framedrop_percent_all_.Size()
-                          : framedrop_percent_media_opt_.Size();
-  const size_t kMinNumFrames = 10;
-  if (num_frames < kMinNumFrames) {
-    return false;  // Wait for more frames before making a decision.
-  }
-  absl::optional<int> avg_qp_high = qp_smoother_high_
-                                        ? qp_smoother_high_->GetAvg()
-                                        : average_qp_.GetAverageRoundedDown();
-  return (avg_qp_high) ? (avg_qp_high.value() <= thresholds_.low) : false;
-}
-
 QualityScaler::CheckQpResult QualityScaler::CheckQp() const {
   RTC_DCHECK_RUN_ON(&task_checker_);
   // Should be set through InitEncode -> Should be set by now.
diff --git a/modules/video_coding/utility/quality_scaler.h b/modules/video_coding/utility/quality_scaler.h
index 14623ff1f3..7939c9ee41 100644
--- a/modules/video_coding/utility/quality_scaler.h
+++ b/modules/video_coding/utility/quality_scaler.h
@@ -51,7 +51,6 @@ class QualityScaler {
   void ReportQp(int qp, int64_t time_sent_us);
 
   void SetQpThresholds(VideoEncoder::QpThresholds thresholds);
-  bool QpFastFilterLow() const;
 
   // The following members declared protected for testing purposes.
  protected:
diff --git a/video/adaptation/quality_scaler_resource.cc b/video/adaptation/quality_scaler_resource.cc
index a24a3e88ff..7d71b2382f 100644
--- a/video/adaptation/quality_scaler_resource.cc
+++ b/video/adaptation/quality_scaler_resource.cc
@@ -61,12 +61,6 @@ void QualityScalerResource::SetQpThresholds(
   quality_scaler_->SetQpThresholds(std::move(qp_thresholds));
 }
 
-bool QualityScalerResource::QpFastFilterLow() {
-  RTC_DCHECK_RUN_ON(encoder_queue());
-  RTC_DCHECK(is_started());
-  return quality_scaler_->QpFastFilterLow();
-}
-
 void QualityScalerResource::OnEncodeCompleted(const EncodedImage& encoded_image,
                                               int64_t time_sent_in_us) {
   RTC_DCHECK_RUN_ON(encoder_queue());
diff --git a/video/adaptation/quality_scaler_resource.h b/video/adaptation/quality_scaler_resource.h
index a1ed34a1ce..0bdc25e895 100644
--- a/video/adaptation/quality_scaler_resource.h
+++ b/video/adaptation/quality_scaler_resource.h
@@ -42,7 +42,6 @@ class QualityScalerResource : public VideoStreamEncoderResource,
                             const FieldTrialsView& field_trials);
   void StopCheckForOveruse();
   void SetQpThresholds(VideoEncoder::QpThresholds qp_thresholds);
-  bool QpFastFilterLow();
   void OnEncodeCompleted(const EncodedImage& encoded_image,
                          int64_t time_sent_in_us);
   void OnFrameDropped(EncodedImageCallback::DropReason reason);