diff --git a/sdkconfig.defaults b/sdkconfig.defaults
index e66f150..3859c5d 100644
--- a/sdkconfig.defaults
+++ b/sdkconfig.defaults
@@ -9,6 +9,14 @@ CONFIG_MDNS_MAX_SERVICES=10
 # LittleFS
 CONFIG_LITTLEFS_MAX_PARTITIONS=3
 
+#
+# ESP System Settings
+#
+# CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ_80 is not set
+# CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ_160 is not set
+CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ_240=y
+CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ=240
+
 # Main task stack
 CONFIG_ESP_MAIN_TASK_STACK_SIZE=8192
 CONFIG_PTHREAD_TASK_STACK_SIZE_DEFAULT=4096