diff --git a/include/metalsvm/config.h b/include/metalsvm/config.h
index 15a222af..f70fdd4c 100644
--- a/include/metalsvm/config.h
+++ b/include/metalsvm/config.h
@@ -35,7 +35,7 @@ extern "C" {
 #define PAGE_SHIFT		12
 #define CACHE_LINE		64
 #define MAILBOX_SIZE		8
-#define TIMER_FREQ		1000	/* in HZ */
+#define TIMER_FREQ		100	/* in HZ */
 #define CLOCK_TICK_RATE		1193182	/* 8254 chip's internal oscillator frequency */
 #define INT_SYSCALL		0x80
 #define KERNEL_SPACE		(1*1024*1024*1024)
diff --git a/lwip/src/include/lwipopts.h b/lwip/src/include/lwipopts.h
index 99678dbf..bf0d78d6 100644
--- a/lwip/src/include/lwipopts.h
+++ b/lwip/src/include/lwipopts.h
@@ -51,7 +51,7 @@
  */
 #define TCP_SND_BUF		1512
 
-#define TCP_SND_QUEUELEN        2
+#define TCP_SND_QUEUELEN        4
 
 /**
  * LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only)