diff --git a/artifacts/ddraw.ini b/artifacts/ddraw.ini
index 2e59d9d5..bc3777b6 100644
--- a/artifacts/ddraw.ini
+++ b/artifacts/ddraw.ini
@@ -1,5 +1,5 @@
 ;sfall configuration settings
-;v4.4.6
+;v4.4.6.1
 
 [Main]
 ;Set to 1 to enable the built-in High Resolution Patch mode that is similar to the hi-res patch by Mash
@@ -455,11 +455,8 @@ PlayIdleAnimOnReload=0
 ;Default is 6. Set to 0 for a 12-hour timer
 CorpseDeleteTime=6
 
-;Set a number of milliseconds to idle each input loop
-;Set to -1 to disable
-;Set to 0 to idle only if other processes are waiting for processor time (WinXP/2000: if processes have equal priority)
-;Set to 1 (or some higher number if needed) to prevent 100% CPU use. The maximum is 50
-ProcessorIdle=-1
+;Set to 1 to allow the game to go idle during each input loop, preventing 100% CPU usage
+ProcessorIdle=0
 
 ;Set to 1 if using the hero appearance mod
 ;Set to 2 for backward compatibility with scripts that manually fix obj_art_fid/art_change_fid_num script functions for dude_obj
diff --git a/sfall/HRP/Dialog.cpp b/sfall/HRP/Dialog.cpp
index a223cb0f..14289140 100644
--- a/sfall/HRP/Dialog.cpp
+++ b/sfall/HRP/Dialog.cpp
@@ -63,7 +63,7 @@ static long __fastcall CreateWinDialog(long height, long yPos, long xPos, long c
 
 static __declspec(naked) void gdCreateHeadWindow_hook_win_add() {
 	__asm {
-		pop	 ebx; // ret addr
+		pop  ebx; // ret addr
 		push eax; // xPos
 		push ebx;
 		jmp  CreateWinDialog;
diff --git a/sfall/HRP/Init.cpp b/sfall/HRP/Init.cpp
index 9b228ba0..89e51648 100644
--- a/sfall/HRP/Init.cpp
+++ b/sfall/HRP/Init.cpp
@@ -155,15 +155,7 @@ static __declspec(naked) void gmouse_bk_process() {
 		jmp  fo::funcoffs::gmouse_bk_process_;
 	}
 }
-/*
-static __declspec(naked) void GNW95_process_message_hack() {
-	__asm {
-		call sfall::WinProc::WaitMessageWindow;
-		xor  eax, eax;
-		retn
-	}
-}
-*/
+
 void Setting::init(const char* exeFileName, std::string &cmdline) {
 	ViewMap::RedrawFix();
 
@@ -306,8 +298,7 @@ void Setting::init(const char* exeFileName, std::string &cmdline) {
 		});
 	}
 
-	if (sf::IniReader::GetInt("OTHER_SETTINGS", "CPU_USAGE_FIX", 1, f2ResIni) != 0) {
-		//sf::MakeCall(0x4C9DA9, GNW95_process_message_hack, 11); // implementation by Mash
+	if (sf::IniReader::GetInt("OTHER_SETTINGS", "CPU_USAGE_FIX", 1, f2ResIni)) {
 		sf::MiscPatches::SetIdle(1);
 	}
 
diff --git a/sfall/Modules/MiscPatches.cpp b/sfall/Modules/MiscPatches.cpp
index 833ca823..2da59d2e 100644
--- a/sfall/Modules/MiscPatches.cpp
+++ b/sfall/Modules/MiscPatches.cpp
@@ -20,6 +20,7 @@
 #include "..\FalloutEngine\Fallout2.h"
 #include "..\SimplePatch.h"
 #include "..\Translate.h"
+#include "..\WinProc.h"
 
 #include "LoadGameHook.h"
 
@@ -37,11 +38,10 @@ static char versionString[65] = {};
 static int* scriptDialog = nullptr;
 
 static __declspec(naked) void GNW95_process_message_hack() {
+	static const DWORD GNW95_process_message_Ret = 0x4C9DE6;
 	__asm {
-		push idle;
-		call Sleep;
-		cmp  dword ptr ds:[FO_VAR_GNW95_isActive], 0;
-		retn;
+		call WinProc::WaitMessageWindow;
+		jmp  GNW95_process_message_Ret;
 	}
 }
 
@@ -894,7 +894,7 @@ static void EngineOptimizationPatches() {
 }
 
 void MiscPatches::SetIdle(int value) {
-	idle = (value > 50) ? 50 : value;
+	idle = value;
 }
 
 void MiscPatches::init() {
@@ -949,9 +949,8 @@ void MiscPatches::init() {
 	fo::var::idle_func = reinterpret_cast<void*>(Sleep);
 	SafeWrite16(0x4C9F12, 0x7D6A); // push 125 (ms)
 
-	int ms = IniReader::GetConfigInt("Misc", "ProcessorIdle", -1);
-	if (ms > idle) SetIdle(ms);
-	if (idle >= 0) MakeCall(0x4C9CF8, GNW95_process_message_hack, 2);
+	if (idle <= 0) idle = IniReader::GetConfigInt("Misc", "ProcessorIdle", -1);
+	if (idle > 0) MakeJump(0x4C9DA9, GNW95_process_message_hack, 3); // replace hack function from HRP by Mash
 
 	BlockCall(0x4425E6); // Patch out ereg call
 
diff --git a/sfall/WinProc.cpp b/sfall/WinProc.cpp
index ed3d3a69..2f1e8012 100644
--- a/sfall/WinProc.cpp
+++ b/sfall/WinProc.cpp
@@ -39,6 +39,7 @@ static bool isClosing = false;
 static bool cCursorShow = true;
 static bool bkgndErased = false;
 
+// Implementation from HRP by Mash
 void __stdcall WinProc::MessageWindow() {
 	MSG msg;
 	while (PeekMessageA(&msg, 0, 0, 0, 0)) {
@@ -49,6 +50,7 @@ void __stdcall WinProc::MessageWindow() {
 	}
 }
 
+// Implementation from HRP by Mash
 void __stdcall WinProc::WaitMessageWindow() {
 	MsgWaitForMultipleObjectsEx(0, 0, 1, 0xFF, 0);
 	MessageWindow();