diff --git a/artifacts/ddraw.ini b/artifacts/ddraw.ini
index 804e25f6..81a3cfa1 100644
--- a/artifacts/ddraw.ini
+++ b/artifacts/ddraw.ini
@@ -1,5 +1,5 @@
 ;sfall configuration settings
-;v3.8.46
+;v3.8.46.1
 
 [Main]
 ;Set to 1 if you want to use command line arguments to tell sfall to use another ini file
@@ -464,11 +464,8 @@ 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/Modules/MiscPatches.cpp b/sfall/Modules/MiscPatches.cpp
index 81dd2f04..2048ecd7 100644
--- a/sfall/Modules/MiscPatches.cpp
+++ b/sfall/Modules/MiscPatches.cpp
@@ -29,8 +29,6 @@
 namespace sfall
 {
 
-static int idle = -1;
-
 static char mapName[16]       = {};
 static char patchName[65]     = {};
 static char versionString[65] = {};
@@ -39,16 +37,23 @@ static int* scriptDialog = nullptr;
 
 bool disableHorrigan = false;
 
-static void __stdcall Sleep2(DWORD dwMilliseconds) {
-	Sleep(dwMilliseconds);
+// Implementation from HRP by Mash
+static void __stdcall CheckMessages() {
+	MSG msg;
+	MsgWaitForMultipleObjectsEx(0, 0, 1, 0xFF, 0);
+	while (PeekMessageA(&msg, 0, 0, 0, 0)) {
+		if (GetMessageA(&msg, 0, 0, 0)) {
+			TranslateMessage(&msg);
+			DispatchMessageA(&msg);
+		}
+	}
 }
 
 static __declspec(naked) void GNW95_process_message_hack() {
+	static const DWORD GNW95_process_message_Ret = 0x4C9DE6;
 	__asm {
-		push idle;
-		call Sleep2;
-		cmp  dword ptr ds:[FO_VAR_GNW95_isActive], 0;
-		retn;
+		call CheckMessages;
+		jmp  GNW95_process_message_Ret;
 	}
 }
 
@@ -1025,9 +1030,9 @@ void MiscPatches::init() {
 	*fo::ptr::idle_func = reinterpret_cast<void*>(Sleep);
 	SafeWrite16(0x4C9F12, 0x7D6A); // push 125 (ms)
 
-	int ms = IniReader::GetConfigInt("Misc", "ProcessorIdle", -1);
-	if (ms > idle) idle = (ms > 50) ? 50 : ms;
-	if (idle >= 0) MakeCall(0x4C9CF8, GNW95_process_message_hack, 2);
+	if (IniReader::GetConfigInt("Misc", "ProcessorIdle", -1) > 0) {
+		MakeJump(0x4C9DA9, GNW95_process_message_hack, 3); // replace hack function from HRP by Mash
+	}
 
 	BlockCall(0x4425E6); // Patch out ereg call