diff --git a/source/duke3d/src/game.cpp b/source/duke3d/src/game.cpp
index 16168eab5..0655e80a8 100644
--- a/source/duke3d/src/game.cpp
+++ b/source/duke3d/src/game.cpp
@@ -120,7 +120,7 @@ int32_t hud_showmapname = 1;
 int32_t g_levelTextTime = 0;
 
 int32_t r_maxfps = 60;
-uint32_t g_frameDelay = 17;
+uint64_t g_frameDelay = 17;
 
 #if defined(RENDERTYPEWIN) && defined(USE_OPENGL)
 extern char forcegl;
@@ -6077,7 +6077,8 @@ void G_MaybeAllocPlayer(int32_t pnum)
 
 int G_FPSLimit(void)
 {
-    static uint32_t nextRender = 0, frameWaiting = 0;
+    static uint64_t nextPageTicks = 0;
+    static int frameWaiting = 0;
 
     if (frameWaiting)
     {
@@ -6085,14 +6086,14 @@ int G_FPSLimit(void)
         nextpage();
     }
 
-    uint32_t frameTime = getticks();
+    uint64_t const frameTicks = getu64ticks();
 
-    if (r_maxfps == 0 || frameTime >= nextRender)
+    if (r_maxfps == 0 || frameTicks >= nextPageTicks)
     {
-        if (frameTime > nextRender + g_frameDelay)
-            nextRender = frameTime;
+        if (frameTicks >= nextPageTicks + g_frameDelay)
+            nextPageTicks = frameTicks;
 
-        nextRender += g_frameDelay;
+        nextPageTicks += g_frameDelay;
         frameWaiting++;
 
         return 1;
diff --git a/source/duke3d/src/game.h b/source/duke3d/src/game.h
index 4f1a0db89..a3c55d99a 100644
--- a/source/duke3d/src/game.h
+++ b/source/duke3d/src/game.h
@@ -290,7 +290,7 @@ extern int32_t MAXCACHE1DSIZE;
 extern palette_t CrosshairColors;
 extern palette_t DefaultCrosshairColors;
 
-extern uint32_t g_frameDelay;
+extern uint64_t g_frameDelay;
 
 int32_t A_CheckInventorySprite(spritetype *s);
 int32_t A_InsertSprite(int16_t whatsect, int32_t s_x, int32_t s_y, int32_t s_z, int16_t s_pn, int8_t s_s, uint8_t s_xr,
diff --git a/source/duke3d/src/menus.cpp b/source/duke3d/src/menus.cpp
index aab62b062..88ec9d97d 100644
--- a/source/duke3d/src/menus.cpp
+++ b/source/duke3d/src/menus.cpp
@@ -2945,7 +2945,7 @@ static int32_t Menu_EntryOptionModify(MenuEntry_t *entry, int32_t newOption)
     }
     else if (entry == &ME_VIDEOSETUP_FRAMELIMIT)
     {
-        g_frameDelay = newOption ? Blrintf(1000.f/(float) newOption) : 0;
+        g_frameDelay = newOption ? (getu64tickspersec()/newOption) : 0;
     }
 
     switch (g_currentMenu)
diff --git a/source/duke3d/src/osdcmds.cpp b/source/duke3d/src/osdcmds.cpp
index d23cab55d..869425e83 100644
--- a/source/duke3d/src/osdcmds.cpp
+++ b/source/duke3d/src/osdcmds.cpp
@@ -1424,7 +1424,7 @@ static int32_t osdcmd_cvar_set_game(osdfuncparm_t const * const parm)
     else if (!Bstrcasecmp(parm->name, "r_maxfps"))
     {
         if (r_maxfps != 0) r_maxfps = clamp(r_maxfps, 30, 1000);
-        g_frameDelay = r_maxfps ? Blrintf(1000.f/(float)r_maxfps) : 0;
+        g_frameDelay = r_maxfps ? (getu64tickspersec()/r_maxfps) : 0;
     }
     else if (!Bstrcasecmp(parm->name, "r_ambientlight"))
     {