diff --git a/components/lwip/include/lwip/port/lwipopts.h b/components/lwip/include/lwip/port/lwipopts.h
index 91c2fa4be9..4475cd4e99 100755
--- a/components/lwip/include/lwip/port/lwipopts.h
+++ b/components/lwip/include/lwip/port/lwipopts.h
@@ -465,7 +465,7 @@
 /**
  * LWIP_STATS==1: Enable statistics collection in lwip_stats.
  */
-#define LWIP_STATS                      1
+#define LWIP_STATS                      0
 
 /*
    ---------------------------------
@@ -555,28 +555,6 @@
  */
 #define TCPIP_DEBUG                     LWIP_DBG_OFF
 
-/**
- * statistic debugs
- */
-#define TCP_STATS                       LWIP_DBG_ON
-#define UDP_STATS                       LWIP_DBG_ON
-#define ICMP_STATS                      LWIP_DBG_ON
-#define IGMP_STATS                      LWIP_DBG_ON
-#define IP_STATS                        LWIP_DBG_ON
-#define IPFRAG_STATS                    LWIP_DBG_ON
-#define ETHARP_STATS                    LWIP_DBG_ON
-#define LINK_STATS                      LWIP_DBG_ON
-#define MEM_STATS                       LWIP_DBG_ON
-#define MEMM_STATS                      LWIP_DBG_ON
-#define SYS_STATS                       LWIP_DBG_ON
-#define IP6_STATS                       LWIP_DBG_ON
-#define IP6_FRAG_STATS                  LWIP_DBG_ON
-#define ICMP6_STATS                     LWIP_DBG_ON
-#define MLD6_STATS                      LWIP_DBG_ON
-#define ND6_STATS                       LWIP_DBG_ON
-#define MIB2_STATS                      LWIP_DBG_ON
-#define ESP_STATS                       LWIP_DBG_ON
-#define LWIP_STATS_DISPLAY              LWIP_DBG_ON
 
 /* Enable all Espressif-only options */
 
@@ -596,8 +574,8 @@
 #define ESP_CNT_DEBUG                   0
 #define ESP_DUAL_CORE                   0
 
-#define TCP_WND_DEFAULT                      (10*TCP_MSS)
-#define TCP_SND_BUF_DEFAULT                  (5*TCP_MSS)
+#define TCP_WND_DEFAULT                      (4*TCP_MSS)
+#define TCP_SND_BUF_DEFAULT                  (2*TCP_MSS)
 
 #if ESP_PER_SOC_TCP_WND
 #define TCP_WND(pcb)                         (pcb->per_soc_tcp_wnd)