diff --git a/r5dev/common/global.cpp b/r5dev/common/global.cpp
index 623b31a7..508153d2 100644
--- a/r5dev/common/global.cpp
+++ b/r5dev/common/global.cpp
@@ -74,6 +74,7 @@ ConVar* r_visualizetraces_duration         = nullptr;
 
 ConVar* gfx_nvnUseLowLatency               = nullptr;
 ConVar* gfx_nvnUseLowLatencyBoost          = nullptr;
+ConVar* gfx_nvnUseMarkersToOptimize        = nullptr;
 #endif // !DEDICATED
 
 ConVar* stream_overlay                     = nullptr;
@@ -316,6 +317,7 @@ void ConVar_StaticInit(void)
 	fps_max_gfx = ConVar::StaticCreate("fps_max_gfx", "0", FCVAR_RELEASE, "Frame rate limiter using NVIDIA Reflex Low Latency SDK. -1 indicates use the desktop refresh. 0 is disabled.", true, -1.f, false, 0.f, nullptr, nullptr);
 	gfx_nvnUseLowLatency      = ConVar::StaticCreate("gfx_nvnUseLowLatency"     , "1", FCVAR_RELEASE | FCVAR_ARCHIVE, "Enables NVIDIA Reflex Low Latency SDK."  , false, 0.f, false, 0.f, nullptr, nullptr);
 	gfx_nvnUseLowLatencyBoost = ConVar::StaticCreate("gfx_nvnUseLowLatencyBoost", "1", FCVAR_RELEASE | FCVAR_ARCHIVE, "Enables NVIDIA Reflex Low Latency Boost.", false, 0.f, false, 0.f, nullptr, nullptr);
+	gfx_nvnUseMarkersToOptimize = ConVar::StaticCreate("gfx_nvnUseMarkersToOptimize", "0", FCVAR_DEVELOPMENTONLY /*!!! MAKE RELEASE ONCE IMPLEMENTED !!!*/ | FCVAR_ARCHIVE, "Enables NVIDIA Reflex Low Latency Timing.", false, 0.f, false, 0.f, nullptr, nullptr);
 #endif // !DEDICATED
 
 	//-------------------------------------------------------------------------
diff --git a/r5dev/common/global.h b/r5dev/common/global.h
index 9b20f609..a9813dff 100644
--- a/r5dev/common/global.h
+++ b/r5dev/common/global.h
@@ -65,6 +65,7 @@ extern ConVar* r_visualizetraces_duration;
 
 extern ConVar* gfx_nvnUseLowLatency;
 extern ConVar* gfx_nvnUseLowLatencyBoost;
+extern ConVar* gfx_nvnUseMarkersToOptimize;
 #endif // !DEDICATED
 
 extern ConVar* stream_overlay;
diff --git a/r5dev/engine/sys_dll2.cpp b/r5dev/engine/sys_dll2.cpp
index 815c8e09..881d0b44 100644
--- a/r5dev/engine/sys_dll2.cpp
+++ b/r5dev/engine/sys_dll2.cpp
@@ -175,6 +175,7 @@ bool CEngineAPI::MainLoop()
 #ifndef DEDICATED
         const bool bUseLowLatencyMode = gfx_nvnUseLowLatency->GetBool();
         const bool bUseLowLatencyBoost = gfx_nvnUseLowLatencyBoost->GetBool();
+        const bool bUseLowLatencyTiming = gfx_nvnUseMarkersToOptimize->GetBool();
 
         float fpsMax = fps_max_gfx->GetFloat();
 
@@ -192,7 +193,8 @@ bool CEngineAPI::MainLoop()
                 fpsMax = 0.0f; // Don't let NVIDIA limit the frame rate.
         }
 
-        GFX_RunLowLatencySDK(D3D11Device(), bUseLowLatencyMode, bUseLowLatencyBoost, fpsMax);
+        GFX_RunLowLatencySDK(D3D11Device(), bUseLowLatencyMode,
+            bUseLowLatencyBoost, bUseLowLatencyTiming, fpsMax);
         CEngineAPI_PumpMessages();
 #endif // !DEDICATED
 
diff --git a/r5dev/geforce/reflex.cpp b/r5dev/geforce/reflex.cpp
index 8fde52d0..bea44579 100644
--- a/r5dev/geforce/reflex.cpp
+++ b/r5dev/geforce/reflex.cpp
@@ -9,13 +9,15 @@
 
 //-----------------------------------------------------------------------------
 // Purpose: runs the low latency sdk
-// Input  : device             - 
-//          useLowLatencyMode  - 
-//          useLowLatencyBoost - 
-//          maxFramesPerSecond -
+// Input  : *device              - 
+//          useLowLatencyMode    - 
+//          useLowLatencyBoost   - 
+//          useMarkersToOptimize - 
+//          maxFramesPerSecond   - 
 //-----------------------------------------------------------------------------
 void GFX_RunLowLatencySDK(IUnknown* device, const bool useLowLatencyMode,
-	const bool useLowLatencyBoost, const float maxFramesPerSecond)
+	const bool useLowLatencyBoost, const bool useMarkersToOptimize,
+	const float maxFramesPerSecond)
 {
 	Assert(device);
 	Assert(IsFinite(maxFramesPerSecond));
@@ -28,7 +30,7 @@ void GFX_RunLowLatencySDK(IUnknown* device, const bool useLowLatencyMode,
 	params.minimumIntervalUs = maxFramesPerSecond > 0
 		? (NvU32)((1000.0f / maxFramesPerSecond) * 1000.0f)
 		: 0;
-	params.bUseMarkersToOptimize = false;
+	params.bUseMarkersToOptimize = useMarkersToOptimize;
 
 	NvAPI_Status status = NvAPI_D3D_SetSleepMode(device, &params);
 
diff --git a/r5dev/geforce/reflex.h b/r5dev/geforce/reflex.h
index fe7b1047..0e5d0b2c 100644
--- a/r5dev/geforce/reflex.h
+++ b/r5dev/geforce/reflex.h
@@ -2,6 +2,7 @@
 #define GFSDK_REFLEX_H
 
 void GFX_RunLowLatencySDK(IUnknown* device, const bool useLowLatencyMode,
-	const bool useLowLatencyBoost, const float maxFramesPerSecond);
+	const bool useLowLatencyBoost, const bool useMarkersToOptimize,
+	const float maxFramesPerSecond);
 
 #endif // GFSDK_REFLEX_H