diff --git a/BBGE/Core.cpp b/BBGE/Core.cpp
index a482e69..dfb6ef5 100644
--- a/BBGE/Core.cpp
+++ b/BBGE/Core.cpp
@@ -329,11 +329,8 @@ Core::Core(const std::string &filesystem, const std::string& extraDataDir, int n
 {
 	sound = NULL;
 	screenCapScale = Vector(1,1,1);
-	timeUpdateType = TIMEUPDATE_DYNAMIC;
 	_extraDataDir = extraDataDir;
 
-	fixedFPS = 60;
-
 	if (userDataSubFolder.empty())
 		userDataSubFolder = appName;
 
@@ -1575,30 +1572,17 @@ void Core::main(float runTime)
 	bool wasInactive = false;
 #endif
 
-
 	nowTicks = thenTicks = SDL_GetTicks();
-
-
-
 	nestedMains++;
 
-
-
 	while((runTime == -1 && !loopDone) || (runTime >0))
 	{
 		BBGE_PROF(Core_main);
 
-
-
-		if (timeUpdateType == TIMEUPDATE_DYNAMIC)
-		{
-			nowTicks = SDL_GetTicks();
-		}
-
+		nowTicks = SDL_GetTicks();
 		dt = (nowTicks-thenTicks)/1000.0;
 		thenTicks = nowTicks;
 
-
 		if (verbose) debugLog("avgFPS");
 		if (!avgFPS.empty())
 		{
@@ -1696,12 +1680,6 @@ void Core::main(float runTime)
 		}
 #endif
 
-		if (timeUpdateType == TIMEUPDATE_FIXED)
-		{
-			real_dt = dt;
-			dt = 1.0f/float(fixedFPS);
-		}
-
 		old_dt = dt;
 
 		if (verbose) debugLog("modify dt");
@@ -1798,39 +1776,6 @@ void Core::main(float runTime)
 			saveScreenshotTGA(getScreenshotFilename());
 			prepScreen(0);
 		}
-
-		// wait
-		if (timeUpdateType == TIMEUPDATE_FIXED)
-		{
-			static float avg_diff=0;
-			static int avg_diff_count=0;
-
-			float diff = (1.0f/float(fixedFPS)) - real_dt;
-
-			avg_diff_count++;
-			avg_diff += diff;
-
-			char buf[256];
-			sprintf(buf, "real_dt: %5.4f \n realFPS: %5.4f \n fixedFPS: %5.4f \n diff: %5.4f \n delay: %5.4f \n avgdiff: %5.8f", float(real_dt), float(real_dt>0?(1.0f/real_dt):0.0f), float(fixedFPS), float(diff), float(diff*1000), float(avg_diff/(float)avg_diff_count));
-			fpsDebugString = buf;
-
-
-
-			nowTicks = SDL_GetTicks();
-
-			if (diff > 0)
-			{
-
-
-				while ((SDL_GetTicks() - nowTicks) < (diff*1000))
-				{
-
-				}
-			}
-
-
-
-		}
 	}
 	if (verbose) debugLog("bottom of function");
 	quitNestedMainFlag = false;
diff --git a/BBGE/Core.h b/BBGE/Core.h
index 4212a71..fc4e0dc 100644
--- a/BBGE/Core.h
+++ b/BBGE/Core.h
@@ -55,12 +55,6 @@ std::string getInputCodeToString(int key);
 std::string getInputCodeToUserString(int key);
 int getStringToInputCode(const std::string &string);
 
-enum TimeUpdateType
-{
-	TIMEUPDATE_DYNAMIC	= 0,
-	TIMEUPDATE_FIXED	= 1
-};
-
 struct ScreenMode
 {
 	ScreenMode() { idx = x = y = hz = 0; }
@@ -708,11 +702,6 @@ public:
 
 protected:
 
-	std::string fpsDebugString;
-
-	TimeUpdateType timeUpdateType;
-	int fixedFPS;
-
 	void updateCullData();
 
 	std::string userDataFolder;
@@ -760,7 +749,6 @@ protected:
 	void shutdownSoundLibrary();
 
 	int afterEffectManagerLayer;
-	bool sortEnabled;
 	Vector cameraOffset;
 	std::vector<float> avgFPS;
 	virtual void modifyDt(float &dt){}
@@ -774,9 +762,6 @@ protected:
 	bool clearedGarbageFlag;
 	int nestedMains;
 	std::string baseTextureDirectory;
-#ifdef BBGE_BUILD_WINDOWS
-	__int64 lastTime, curTime, freq;
-#endif
 
 	std::ofstream _logOut;