diff --git a/source/blood/src/view.cpp b/source/blood/src/view.cpp
index f70e717f2..8597ccdd6 100644
--- a/source/blood/src/view.cpp
+++ b/source/blood/src/view.cpp
@@ -3088,12 +3088,10 @@ void viewDrawScreen(bool sceneonly)
     lastUpdate = totalclock;
     if (!paused && (!M_Active() || gGameOptions.nGameType != 0))
     {
-        gInterpolate = ((totalclock - gNetFifoClock) + 4) << 14;// .toScale16() / 4;
-    }
-    if (gInterpolate < 0 || gInterpolate > 65536)
-    {
-        gInterpolate = ClipRange(gInterpolate, 0, 65536);
+        gInterpolate = CalcSmoothRatio(totalclock, gNetFifoClock - 4, 30);
     }
+    else gInterpolate = 65536;
+
     if (cl_interpolate)
     {
         CalcInterpolations();
diff --git a/source/common/platform/posix/cocoa/i_input.mm b/source/common/platform/posix/cocoa/i_input.mm
index 3b562bcb8..9c09cbced 100644
--- a/source/common/platform/posix/cocoa/i_input.mm
+++ b/source/common/platform/posix/cocoa/i_input.mm
@@ -497,8 +497,7 @@ void ProcessMouseMoveInGame(NSEvent* theEvent)
 
 	if (!m_noprescale)
 	{
-		x *= 3;
-		y *= 2;
+		x <<= 2;
 	}
 
 	event_t event = {};
diff --git a/source/core/gamecontrol.cpp b/source/core/gamecontrol.cpp
index cee6208c3..1c67588c9 100644
--- a/source/core/gamecontrol.cpp
+++ b/source/core/gamecontrol.cpp
@@ -1030,10 +1030,9 @@ int CalcSmoothRatio(const ClockTicks &totalclk, const ClockTicks &ototalclk, int
 {
 	const double TICRATE = 120.;
 
-	double rfreq = refreshfreq * TICRATE / timerGetClockRate();
 	double elapsedTime = (totalclk - ototalclk);
-	double elapsedFrames = elapsedTime * rfreq * (1. / TICRATE);
-	double ratio = (elapsedFrames * realgameticspersec) / rfreq;
+	double elapsedFrames = elapsedTime * (1. / TICRATE);
+	double ratio = (elapsedFrames * realgameticspersec);
 	return clamp(xs_RoundToInt(ratio * 65536), 0, 65536);
 }