diff --git a/ports/psoc6/lwip_inc/lwipopts.h b/ports/psoc6/lwip_inc/lwipopts.h
index 7a51407e8f019..1412e19c92fa4 100644
--- a/ports/psoc6/lwip_inc/lwipopts.h
+++ b/ports/psoc6/lwip_inc/lwipopts.h
@@ -37,6 +37,7 @@
 
 #define LWIP_RAW                        (1)
 
+
 //
 // Enable IPV4 networking
 //
@@ -146,7 +147,7 @@
  * TCP_SND_BUF: TCP sender buffer space (bytes).
  * To achieve good performance, this should be at least 2 * TCP_MSS.
  */
-#define TCP_SND_BUF                     (4 * TCP_MSS)
+#define TCP_SND_BUF                     (8 * TCP_MSS)
 
 /**
  * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least
@@ -201,7 +202,7 @@
  * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
  * (requires the LWIP_TCP option)
  */
-#define MEMP_NUM_TCP_SEG                27
+#define MEMP_NUM_TCP_SEG                (2 * TCP_SND_QUEUELEN)
 
 /**
  * MEMP_NUM_SYS_TIMEOUT: the number of simultaneously active timeouts.
@@ -260,7 +261,7 @@
 
 #define LWIP_DNS                       (1)
 
-#define LWIP_NETIF_TX_SINGLE_PBUF      (1)
+#define LWIP_NETIF_TX_SINGLE_PBUF      (0)
 
 #define LWIP_RAND               rand