diff --git a/MiSTer.ini b/MiSTer.ini
index e396a26..9aa80f4 100644
--- a/MiSTer.ini
+++ b/MiSTer.ini
@@ -45,7 +45,8 @@ video_mode=0
 ; set to 1-10 (seconds) to display video info on startup/change
 video_info=0
 
-; set to 1 for automatic HDMI VSync rate adjust to match original VSync.
+; Set to 1 for automatic HDMI VSync rate adjust to match original VSync.
+; Set to 2 for low latency mode (single buffer).
 ; This option makes video butter smooth like on original emulated system.
 ; Adjusting is done by changing pixel clock. Not every display supports variable pixel clock.
 ; For proper adjusting and to reduce possible out of range pixel clock, use 60Hz HDMI video
diff --git a/cfg.cpp b/cfg.cpp
index f6b06d5..14c73ef 100644
--- a/cfg.cpp
+++ b/cfg.cpp
@@ -33,7 +33,7 @@ const ini_var_t ini_vars[] = {
 	{ "KEY_MENU_AS_RGUI", (void*)(&(cfg.key_menu_as_rgui)), UINT8, 0, 1, 1 },
 	{ "VIDEO_MODE", (void*)(cfg.video_conf), STRING, 0, sizeof(cfg.video_conf)-1, 1 },
 	{ "VIDEO_INFO", (void*)(&(cfg.video_info)), UINT8, 0, 10, 1 },
-	{ "VSYNC_ADJUST", (void*)(&(cfg.vsync_adjust)), UINT8, 0, 1, 1 },
+	{ "VSYNC_ADJUST", (void*)(&(cfg.vsync_adjust)), UINT8, 0, 2, 1 },
 	{ "HDMI_AUDIO_96K", (void*)(&(cfg.hdmi_audio_96k)), UINT8, 0, 1, 1 },
 	{ "DVI_MODE", (void*)(&(cfg.dvi)), UINT8, 0, 1, 1 },
 	{ "KBD_NOMOUSE", (void*)(&(cfg.kbd_nomouse)), UINT8, 0, 1, 1 },
diff --git a/user_io.cpp b/user_io.cpp
index 9416e1b..afcb00f 100644
--- a/user_io.cpp
+++ b/user_io.cpp
@@ -2810,7 +2810,7 @@ static void setVideo()
 	for (int i = 9; i < 21; i++)
 	{
 		printf("0x%X, ", vitems[i]);
-		if (i & 1) spi_w(vitems[i]);
+		if (i & 1) spi_w(vitems[i] | ((i==9 && cfg.vsync_adjust==2) ? 0x8000 : 0));
 		else
 		{
 			spi_w(vitems[i]);
@@ -2904,7 +2904,7 @@ void parse_video_mode()
 
 static int adjust_video_mode(uint32_t vtime)
 {
-	printf("Adjust VSync.\n");
+	printf("Adjust VSync(%d).\n", cfg.vsync_adjust);
 
 	double Fpix = 100 * (vitems[1] + vitems[2] + vitems[3] + vitems[4]) * (vitems[5] + vitems[6] + vitems[7] + vitems[8]);
 	Fpix /= vtime;