diff --git a/samples/net/zperf/CMakeLists.txt b/samples/net/zperf/CMakeLists.txt
index dd1a09bbb22..9b3b5084b39 100644
--- a/samples/net/zperf/CMakeLists.txt
+++ b/samples/net/zperf/CMakeLists.txt
@@ -26,3 +26,9 @@ endif()
 if (CONFIG_USB_DEVICE_STACK_NEXT)
   include(${ZEPHYR_BASE}/samples/subsys/usb/common/common.cmake)
 endif()
+
+if (CONFIG_SOC_NRF5340_CPUAPP)
+  target_sources(app PRIVATE
+    src/nrf5340_cpu_boost.c
+    )
+endif()
diff --git a/samples/net/zperf/src/main.c b/samples/net/zperf/src/main.c
index 86e6ea2f0c1..648adacf223 100644
--- a/samples/net/zperf/src/main.c
+++ b/samples/net/zperf/src/main.c
@@ -12,6 +12,8 @@
 #include <zephyr/usb/usbd.h>
 #include <zephyr/net/net_config.h>
 
+LOG_MODULE_REGISTER(zperf, CONFIG_NET_ZPERF_LOG_LEVEL);
+
 #ifdef CONFIG_NET_LOOPBACK_SIMULATE_PACKET_DROP
 #include <zephyr/net/loopback.h>
 #endif
diff --git a/samples/net/zperf/src/nrf5340_cpu_boost.c b/samples/net/zperf/src/nrf5340_cpu_boost.c
new file mode 100644
index 00000000000..0eff58c32e3
--- /dev/null
+++ b/samples/net/zperf/src/nrf5340_cpu_boost.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * @file
+ * @brief CPU frequency boost for nRF53 series
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/logging/log.h>
+
+#include <nrfx_clock.h>
+
+LOG_MODULE_DECLARE(zperf, CONFIG_NET_ZPERF_LOG_LEVEL);
+
+static int nrf53_cpu_boost(void)
+{
+	int err;
+
+	/* For optimal performance, the CPU frequency should be set to 128 MHz */
+	err = nrfx_clock_divider_set(NRF_CLOCK_DOMAIN_HFCLK, NRF_CLOCK_HFCLK_DIV_1);
+	err -= NRFX_ERROR_BASE_NUM;
+	if (err != 0) {
+		LOG_WRN("Failed to set 128 MHz: %d", err);
+	}
+
+	LOG_INF("Starting %s with CPU frequency: %d MHz", CONFIG_BOARD, SystemCoreClock/MHZ(1));
+
+	return err;
+}
+
+SYS_INIT(nrf53_cpu_boost, POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);