diff --git a/src/libcamera/software_isp/debayer_cpu.cpp b/src/libcamera/software_isp/debayer_cpu.cpp
index 2dc85e5e..d5fd0ae7 100644
--- a/src/libcamera/software_isp/debayer_cpu.cpp
+++ b/src/libcamera/software_isp/debayer_cpu.cpp
@@ -655,7 +655,7 @@ void DebayerCpu::memcpyNextLine(const uint8_t *linePointers[])
 	lineBufferIndex_ = (lineBufferIndex_ + 1) % (patternHeight + 1);
 }
 
-void DebayerCpu::process2(const uint8_t *src, uint8_t *dst)
+void DebayerCpu::process2(uint32_t frame, const uint8_t *src, uint8_t *dst)
 {
 	unsigned int yEnd = window_.y + window_.height;
 	/* Holds [0] previous- [1] current- [2] next-line */
@@ -681,7 +681,7 @@ void DebayerCpu::process2(const uint8_t *src, uint8_t *dst)
 	for (unsigned int y = window_.y; y < yEnd; y += 2) {
 		shiftLinePointers(linePointers, src);
 		memcpyNextLine(linePointers);
-		stats_->processLine0(y, linePointers);
+		stats_->processLine0(frame, y, linePointers);
 		(this->*debayer0_)(dst, linePointers);
 		src += inputConfig_.stride;
 		dst += outputConfig_.stride;
@@ -696,7 +696,7 @@ void DebayerCpu::process2(const uint8_t *src, uint8_t *dst)
 	if (window_.y == 0) {
 		shiftLinePointers(linePointers, src);
 		memcpyNextLine(linePointers);
-		stats_->processLine0(yEnd, linePointers);
+		stats_->processLine0(frame, yEnd, linePointers);
 		(this->*debayer0_)(dst, linePointers);
 		src += inputConfig_.stride;
 		dst += outputConfig_.stride;
@@ -710,7 +710,7 @@ void DebayerCpu::process2(const uint8_t *src, uint8_t *dst)
 	}
 }
 
-void DebayerCpu::process4(const uint8_t *src, uint8_t *dst)
+void DebayerCpu::process4(uint32_t frame, const uint8_t *src, uint8_t *dst)
 {
 	const unsigned int yEnd = window_.y + window_.height;
 	/*
@@ -733,7 +733,7 @@ void DebayerCpu::process4(const uint8_t *src, uint8_t *dst)
 	for (unsigned int y = window_.y; y < yEnd; y += 4) {
 		shiftLinePointers(linePointers, src);
 		memcpyNextLine(linePointers);
-		stats_->processLine0(y, linePointers);
+		stats_->processLine0(frame, y, linePointers);
 		(this->*debayer0_)(dst, linePointers);
 		src += inputConfig_.stride;
 		dst += outputConfig_.stride;
@@ -746,7 +746,7 @@ void DebayerCpu::process4(const uint8_t *src, uint8_t *dst)
 
 		shiftLinePointers(linePointers, src);
 		memcpyNextLine(linePointers);
-		stats_->processLine2(y, linePointers);
+		stats_->processLine2(frame, y, linePointers);
 		(this->*debayer2_)(dst, linePointers);
 		src += inputConfig_.stride;
 		dst += outputConfig_.stride;
@@ -821,12 +821,12 @@ void DebayerCpu::process(uint32_t frame, FrameBuffer *input, FrameBuffer *output
 		return;
 	}
 
-	stats_->startFrame();
+	stats_->startFrame(frame);
 
 	if (inputConfig_.patternSize.height == 2)
-		process2(in.planes()[0].data(), out.planes()[0].data());
+		process2(frame, in.planes()[0].data(), out.planes()[0].data());
 	else
-		process4(in.planes()[0].data(), out.planes()[0].data());
+		process4(frame, in.planes()[0].data(), out.planes()[0].data());
 
 	metadata.planes()[0].bytesused = out.planes()[0].size();
 
diff --git a/src/libcamera/software_isp/debayer_cpu.h b/src/libcamera/software_isp/debayer_cpu.h
index 9d343e46..03e0d784 100644
--- a/src/libcamera/software_isp/debayer_cpu.h
+++ b/src/libcamera/software_isp/debayer_cpu.h
@@ -133,8 +133,8 @@ private:
 	void setupInputMemcpy(const uint8_t *linePointers[]);
 	void shiftLinePointers(const uint8_t *linePointers[], const uint8_t *src);
 	void memcpyNextLine(const uint8_t *linePointers[]);
-	void process2(const uint8_t *src, uint8_t *dst);
-	void process4(const uint8_t *src, uint8_t *dst);
+	void process2(uint32_t frame, const uint8_t *src, uint8_t *dst);
+	void process4(uint32_t frame, const uint8_t *src, uint8_t *dst);
 
 	/* Max. supported Bayer pattern height is 4, debayering this requires 5 lines */
 	static constexpr unsigned int kMaxLineBuffers = 5;
diff --git a/src/libcamera/software_isp/swstats_cpu.cpp b/src/libcamera/software_isp/swstats_cpu.cpp
index eb416dfd..634ebfc3 100644
--- a/src/libcamera/software_isp/swstats_cpu.cpp
+++ b/src/libcamera/software_isp/swstats_cpu.cpp
@@ -62,8 +62,9 @@ namespace libcamera {
  */
 
 /**
- * \fn void SwStatsCpu::processLine0(unsigned int y, const uint8_t *src[])
+ * \fn void SwStatsCpu::processLine0(uint32_t frame, unsigned int y, const uint8_t *src[])
  * \brief Process line 0
+ * \param[in] frame The frame number
  * \param[in] y The y coordinate.
  * \param[in] src The input data.
  *
@@ -74,8 +75,9 @@ namespace libcamera {
  */
 
 /**
- * \fn void SwStatsCpu::processLine2(unsigned int y, const uint8_t *src[])
+ * \fn void SwStatsCpu::processLine2(uint32_t frame, unsigned int y, const uint8_t *src[])
  * \brief Process line 2 and 3
+ * \param[in] frame The frame number
  * \param[in] y The y coordinate.
  * \param[in] src The input data.
  *
@@ -89,6 +91,11 @@ namespace libcamera {
  * \brief Signals that the statistics are ready
  */
 
+/**
+ * \var SwStatsCpu::kStatPerNumFrames
+ * \brief Run stats once every kStatPerNumFrames frames
+ */
+
 /**
  * \typedef SwStatsCpu::statsProcessFn
  * \brief Called when there is data to get statistics from
@@ -295,11 +302,15 @@ void SwStatsCpu::statsGBRG10PLine0(const uint8_t *src[])
 
 /**
  * \brief Reset state to start statistics gathering for a new frame
+ * \param[in] frame The frame number
  *
  * This may only be called after a successful setWindow() call.
  */
-void SwStatsCpu::startFrame(void)
+void SwStatsCpu::startFrame(uint32_t frame)
 {
+	if (frame % kStatPerNumFrames)
+		return;
+
 	if (window_.width == 0)
 		LOG(SwStatsCpu, Error) << "Calling startFrame() without setWindow()";
 
@@ -318,7 +329,7 @@ void SwStatsCpu::startFrame(void)
  */
 void SwStatsCpu::finishFrame(uint32_t frame, uint32_t bufferId)
 {
-	stats_.valid = true;
+	stats_.valid = frame % kStatPerNumFrames == 0;
 	*sharedStats_ = stats_;
 	statsReady.emit(frame, bufferId);
 }
diff --git a/src/libcamera/software_isp/swstats_cpu.h b/src/libcamera/software_isp/swstats_cpu.h
index 26a2f462..fae575f8 100644
--- a/src/libcamera/software_isp/swstats_cpu.h
+++ b/src/libcamera/software_isp/swstats_cpu.h
@@ -32,6 +32,14 @@ public:
 	SwStatsCpu();
 	~SwStatsCpu() = default;
 
+	/*
+	 * The combination of pipeline + sensor delays means that
+	 * exposure changes can take up to 3 frames to get applied,
+	 * Run stats once every 4 frames to ensure any previous
+	 * exposure changes have been applied.
+	 */
+	static constexpr uint32_t kStatPerNumFrames = 4;
+
 	bool isValid() const { return sharedStats_.fd().isValid(); }
 
 	const SharedFD &getStatsFD() { return sharedStats_.fd(); }
@@ -40,11 +48,14 @@ public:
 
 	int configure(const StreamConfiguration &inputCfg);
 	void setWindow(const Rectangle &window);
-	void startFrame();
+	void startFrame(uint32_t frame);
 	void finishFrame(uint32_t frame, uint32_t bufferId);
 
-	void processLine0(unsigned int y, const uint8_t *src[])
+	void processLine0(uint32_t frame, unsigned int y, const uint8_t *src[])
 	{
+		if (frame % kStatPerNumFrames)
+			return;
+
 		if ((y & ySkipMask_) || y < static_cast<unsigned int>(window_.y) ||
 		    y >= (window_.y + window_.height))
 			return;
@@ -52,8 +63,11 @@ public:
 		(this->*stats0_)(src);
 	}
 
-	void processLine2(unsigned int y, const uint8_t *src[])
+	void processLine2(uint32_t frame, unsigned int y, const uint8_t *src[])
 	{
+		if (frame % kStatPerNumFrames)
+			return;
+
 		if ((y & ySkipMask_) || y < static_cast<unsigned int>(window_.y) ||
 		    y >= (window_.y + window_.height))
 			return;