diff --git a/src/EterLib/GrpDevice.cpp b/src/EterLib/GrpDevice.cpp
index 5b7f81f..e4f3409 100644
--- a/src/EterLib/GrpDevice.cpp
+++ b/src/EterLib/GrpDevice.cpp
@@ -2,6 +2,7 @@
 #include "GrpDevice.h"
 #include "EterBase/Stl.h"
 #include "EterBase/Debug.h"
+#include <intrin.h>
 
 bool CPU_HAS_SSE2 = false;
 bool GRAPHICS_CAPS_CAN_NOT_DRAW_LINE = false;
diff --git a/src/EterLib/NetStream.cpp b/src/EterLib/NetStream.cpp
index f5efc76..9705948 100644
--- a/src/EterLib/NetStream.cpp
+++ b/src/EterLib/NetStream.cpp
@@ -419,6 +419,13 @@ bool CNetworkStream::Connect(const CNetworkAddress& c_rkNetAddr, int limitSec)
 	DWORD arg = 1;
 	ioctlsocket(m_sock, FIONBIO, &arg);	// Non-blocking mode
 
+	// Enable TCP_NODELAY to disable Nagle's algorithm for lower latency
+	int opt = 1;
+	if (setsockopt(m_sock, IPPROTO_TCP, TCP_NODELAY, (const char*)&opt, sizeof(opt)) != 0)
+	{
+		TraceError("setsockopt TCP_NODELAY failed: %d", WSAGetLastError());
+	}
+
 	if (connect(m_sock, (PSOCKADDR)&m_addr, m_addr.GetSize()) == SOCKET_ERROR)
 	{
 		int error = WSAGetLastError();