diff --git a/include/PeakController.h b/include/PeakController.h
index de9da3b1ce1..a22257374d6 100644
--- a/include/PeakController.h
+++ b/include/PeakController.h
@@ -78,8 +78,7 @@ public slots:
 	static int m_loadCount;
 	static bool m_buggedFile;
 	
-	float m_attackCoeff;
-	float m_decayCoeff;
+	float m_coeff;
 	bool m_coeffNeedsUpdate;
 } ;
 
diff --git a/plugins/PeakControllerEffect/PeakControllerEffect.cpp b/plugins/PeakControllerEffect/PeakControllerEffect.cpp
index 394a80efd4b..a1ccec25f65 100644
--- a/plugins/PeakControllerEffect/PeakControllerEffect.cpp
+++ b/plugins/PeakControllerEffect/PeakControllerEffect.cpp
@@ -132,8 +132,16 @@ Effect::ProcessStatus PeakControllerEffect::processImpl(SampleFrame* buf, const
 	float curRMS = sqrt_neg(sum / frames);
 	const float tres = c.m_tresholdModel.value();
 	const float amount = c.m_amountModel.value() * c.m_amountMultModel.value();
+	const float attack = 1.0f - c.m_attackModel.value();
+	const float decay = 1.0f - c.m_decayModel.value();
+
 	curRMS = qAbs( curRMS ) < tres ? 0.0f : curRMS;
-	m_lastSample = qBound( 0.0f, c.m_baseModel.value() + amount * curRMS, 1.0f );
+	float target = std::clamp( c.m_baseModel.value() + amount * curRMS, 0.0f, 1.0f );
+	// Use decay for t when the target is less than m_lastSample (volume is decreasing), attack otherwise.
+	const float t = target > m_lastSample ? decay : attack;
+	// Set m_lastSample to the interpolation between itself and target.
+	// When t is 1.0, m_lastSample snaps to target. When t is 0.0, m_lastSample shouldn't change.
+	m_lastSample += t * (target - m_lastSample);
 
 	return ProcessStatus::Continue;
 }
diff --git a/src/core/PeakController.cpp b/src/core/PeakController.cpp
index 1c38cf4cb33..1b819982a6c 100644
--- a/src/core/PeakController.cpp
+++ b/src/core/PeakController.cpp
@@ -80,9 +80,7 @@ void PeakController::updateValueBuffer()
 {
 	if( m_coeffNeedsUpdate )
 	{
-		const float ratio = 44100.0f / Engine::audioEngine()->outputSampleRate();
-		m_attackCoeff = 1.0f - powf( 2.0f, -0.3f * ( 1.0f - m_peakEffect->attackModel()->value() ) * ratio );
-		m_decayCoeff = 1.0f -  powf( 2.0f, -0.3f * ( 1.0f - m_peakEffect->decayModel()->value()  ) * ratio );
+		m_coeff = 100.0f / Engine::audioEngine()->outputSampleRate();
 		m_coeffNeedsUpdate = false;
 	}
 
@@ -97,14 +95,7 @@ void PeakController::updateValueBuffer()
 			for( f_cnt_t f = 0; f < frames; ++f )
 			{
 				const float diff = ( targetSample - m_currentSample );
-				if( m_currentSample < targetSample ) // going up...
-				{
-					m_currentSample += diff * m_attackCoeff;
-				}
-				else if( m_currentSample > targetSample ) // going down
-				{
-					m_currentSample += diff * m_decayCoeff;
-				}
+				m_currentSample += diff * m_coeff;
 				values[f] = m_currentSample;
 			}
 		}