diff --git a/src/main.cpp b/src/main.cpp
index 42fac3c..3b6f66c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1030,6 +1030,8 @@ patch(void)
 #endif
 #ifdef DEBUG
 	if(gtaversion == VC_10){
+//extern void hackshit(void);
+//hackshit();
 		// remove "%s has not been pre-instanced", we don't really care
 		Nop(0x40C32B, 5);
 		//MemoryVP::InjectHook(0x650ACB, RwTextureRead_VC);
@@ -1051,6 +1053,9 @@ patch(void)
 		Patch(0x58054D + 2, 0x94B210+4);
 		Patch(0x58057D + 2, 0x94B210+8);
 
+		// disable Vsynch
+		Patch<uint8>(0x6021EF + 1, 0);
+
 		// disable level load screens
 		Nop(0x40E00E, 5);
 		Nop(0x40E01C, 5);
diff --git a/src/matfx.cpp b/src/matfx.cpp
index 00bb722..7abd950 100644
--- a/src/matfx.cpp
+++ b/src/matfx.cpp
@@ -267,6 +267,7 @@ else
 		RwD3D8SetTexture(texture, 0);
 	else
 		RwD3D8SetTexture(nil, 0);
+	RwD3D8SetPixelShader(0);
 	RwD3D8SetVertexShader(inst->vertexShader);
 	RwD3D8SetStreamSource(0, inst->vertexBuffer, inst->stride);
 	RwD3D8SetIndices(inst->indexBuffer, inst->baseIndex);
diff --git a/src/postfx.cpp b/src/postfx.cpp
index a4e9e7b..9f4cce8 100644
--- a/src/postfx.cpp
+++ b/src/postfx.cpp
@@ -426,12 +426,12 @@ CMBlur::MotionBlurRender_mobile(RwCamera *cam, uint8 red, uint8 green, uint8 blu
 		add[1] = green/1536.f;
 		add[2] = blue/1536.f;
 	}else{
-		mult[0] = (red-64)/256.0f + 1.14f;
-		mult[1] = (green-64)/256.0f + 1.14f;
-		mult[2] = (blue-64)/256.0f + 1.14f;
-		add[0] = red/1536.f + 0.05f;
-		add[1] = green/1536.f + 0.05f;
-		add[2] = blue/1536.f + 0.05f;
+		mult[0] = (red-64)/256.0f + 1.4f;
+		mult[1] = (green-64)/256.0f + 1.4f;
+		mult[2] = (blue-64)/256.0f + 1.4f;
+		add[0] = red/1536.f - 0.05f;
+		add[1] = green/1536.f - 0.05f;
+		add[2] = blue/1536.f - 0.05f;
 	}
 	RwD3D9SetPixelShaderConstant(3, &mult, 1);
 	RwD3D9SetPixelShaderConstant(4, &add, 1);
diff --git a/src/skygfx.h b/src/skygfx.h
index c8d5dbe..e4a6d2e 100644
--- a/src/skygfx.h
+++ b/src/skygfx.h
@@ -15,6 +15,8 @@
 #include <stdint.h>
 #include <assert.h>
 
+//#define DEBUG
+
 // want to use RwEngineInst instead of RwEngineInstance
 #undef RWSRCGLOBAL
 #define RWSRCGLOBAL(variable) \