diff --git a/components/esp_websocket_client/esp_websocket_client.c b/components/esp_websocket_client/esp_websocket_client.c
index 40a8e5399bb..29e304f03fb 100644
--- a/components/esp_websocket_client/esp_websocket_client.c
+++ b/components/esp_websocket_client/esp_websocket_client.c
@@ -71,6 +71,7 @@ ESP_EVENT_DEFINE_BASE(WEBSOCKET_EVENTS);
 typedef struct {
     int                         task_stack;
     int                         task_prio;
+    BaseType_t                  core_id;
     char                        *uri;
     char                        *host;
     char                        *path;
@@ -197,6 +198,8 @@ static esp_err_t esp_websocket_client_set_config(esp_websocket_client_handle_t c
         cfg->task_stack = WEBSOCKET_TASK_STACK;
     }
 
+    cfg->core_id = config->core_id;
+
     if (config->host) {
         cfg->host = strdup(config->host);
         ESP_WS_CLIENT_MEM_CHECK(TAG, cfg->host, return ESP_ERR_NO_MEM);
@@ -765,7 +768,7 @@ esp_err_t esp_websocket_client_start(esp_websocket_client_handle_t client)
         ESP_LOGE(TAG, "The client has started");
         return ESP_FAIL;
     }
-    if (xTaskCreate(esp_websocket_client_task, "websocket_task", client->config->task_stack, client, client->config->task_prio, &client->task_handle) != pdTRUE) {
+    if (xTaskCreatePinnedToCore(esp_websocket_client_task, "websocket_task", client->config->task_stack, client, client->config->task_prio, &client->task_handle, client->config->core_id) != pdTRUE) {
         ESP_LOGE(TAG, "Error create websocket task");
         return ESP_FAIL;
     }
diff --git a/components/soc/esp32/include/soc/soc.h b/components/soc/esp32/include/soc/soc.h
index 0d47a24248a..f9e3e875937 100644
--- a/components/soc/esp32/include/soc/soc.h
+++ b/components/soc/esp32/include/soc/soc.h
@@ -220,7 +220,7 @@
 #define  CPU_CLK_FREQ_ROM                            APB_CLK_FREQ_ROM
 #define  CPU_CLK_FREQ                                APB_CLK_FREQ       //this may be incorrect, please refer to ESP32_DEFAULT_CPU_FREQ_MHZ
 #define  APB_CLK_FREQ                                ( 80*1000000 )       //unit: Hz
-#define  REF_CLK_FREQ                                ( 2000000 )
+#define  REF_CLK_FREQ                                ( 1000000 )
 #define  UART_CLK_FREQ                               APB_CLK_FREQ
 #define  WDT_CLK_FREQ                                APB_CLK_FREQ
 #define  TIMER_CLK_FREQ                              (80000000>>4) //80MHz divided by 16