diff --git a/Core/debugger.c b/Core/debugger.c
index 4608f9f..b7829e1 100644
--- a/Core/debugger.c
+++ b/Core/debugger.c
@@ -1983,7 +1983,7 @@ static bool apu(GB_gameboy_t *gb, char *arguments, char *modifiers, const debugg
 
         GB_log(gb, "    LFSR in %u-step mode, current value ",
             gb->apu.noise_channel.narrow? 7 : 15);
-        for (uint16_t lfsr = gb->apu.noise_channel.lfsr, i = 15; i--; lfsr <<= 1) {
+        nounroll for (uint16_t lfsr = gb->apu.noise_channel.lfsr, i = 15; i--; lfsr <<= 1) {
             GB_log(gb, "%u%s", (lfsr >> 14) & 1, i%4 ? "" : " ");
         }
 
@@ -2166,9 +2166,9 @@ static void print_command_description(GB_gameboy_t *gb, const debugger_command_t
     
     const char *string = command->help_string;
     const unsigned width = 80 - 13;
-    while (strlen(string) > width) {
+    nounroll while (strlen(string) > width) {
         const char *space = string + width;
-        while (*space != ' ') {
+        nounroll while (*space != ' ') {
             space--;
             if (space == string) {
                 // This help string has some extra long word? Abort line-breaking, it's going to break anyway.
@@ -2202,7 +2202,7 @@ static bool help(GB_gameboy_t *gb, char *arguments, char *modifiers, const debug
         }
         return true;
     }
-    for (command = commands; command->command; command++) {
+    nounroll for (command = commands; command->command; command++) {
         if (command->help_string) {
             print_command_description(gb, command);
         }
diff --git a/Core/defs.h b/Core/defs.h
index 7e265b6..94ce819 100644
--- a/Core/defs.h
+++ b/Core/defs.h
@@ -15,10 +15,13 @@
 
 #if __clang__
 #define unrolled _Pragma("unroll")
+#define nounroll _Pragma("clang loop unroll(disable)")
 #elif __GNUC__ >= 8
 #define unrolled _Pragma("GCC unroll 8")
+#define nounroll _Pragma("GCC unroll 0")
 #else
 #define unrolled
+#define nounroll
 #endif
 
 #define unreachable() __builtin_unreachable();
diff --git a/Core/display.c b/Core/display.c
index 5db782e..7191f65 100644
--- a/Core/display.c
+++ b/Core/display.c
@@ -403,7 +403,7 @@ void GB_set_color_correction_mode(GB_gameboy_t *gb, GB_color_correction_mode_t m
 {
     gb->color_correction_mode = mode;
     if (GB_is_cgb(gb)) {
-        for (unsigned i = 0; i < 32; i++) {
+        nounroll for (unsigned i = 0; i < 32; i++) {
             GB_palette_changed(gb, false, i * 2);
             GB_palette_changed(gb, true, i * 2);
         }
@@ -414,7 +414,7 @@ void GB_set_light_temperature(GB_gameboy_t *gb, double temperature)
 {
     gb->light_temperature = temperature;
     if (GB_is_cgb(gb)) {
-        for (unsigned i = 0; i < 32; i++) {
+        nounroll for (unsigned i = 0; i < 32; i++) {
             GB_palette_changed(gb, false, i * 2);
             GB_palette_changed(gb, true, i * 2);
         }
@@ -1172,7 +1172,7 @@ object_buffer_pointer++\
     data0 <<= fractional_scroll;
     data1 <<= fractional_scroll;
     bool check_window = gb->wy_triggered && (gb->io_registers[GB_IO_LCDC] & GB_LCDC_WIN_ENABLE);
-    for (unsigned i = fractional_scroll; i < 8; i++) {
+    nounroll for (unsigned i = fractional_scroll; i < 8; i++) {
         if (check_window && gb->io_registers[GB_IO_WX] == pixels + 7) {
 activate_window:
             check_window = false;
@@ -1187,7 +1187,7 @@ activate_window:
     
     while (pixels < 160 - 8) {
         get_tile_data(gb, tile_x, y, map, &attributes, &data0, &data1);
-        for (unsigned i = 0; i < 8; i++) {
+        nounroll for (unsigned i = 0; i < 8; i++) {
             if (check_window && gb->io_registers[GB_IO_WX] == pixels + 7) {
                 goto activate_window;
             }
@@ -1313,7 +1313,7 @@ object_buffer_pointer++\
     data0 <<= fractional_scroll;
     data1 <<= fractional_scroll;
     bool check_window = gb->wy_triggered && (gb->io_registers[GB_IO_LCDC] & GB_LCDC_WIN_ENABLE);
-    for (unsigned i = fractional_scroll; i < 8; i++) {
+    nounroll for (unsigned i = fractional_scroll; i < 8; i++) {
         if (check_window && gb->io_registers[GB_IO_WX] == pixels + 7) {
         activate_window:
             check_window = false;
@@ -1328,7 +1328,7 @@ object_buffer_pointer++\
     
     while (pixels < 160 - 8) {
         get_tile_data(gb, tile_x, y, map, &attributes, &data0, &data1);
-        for (unsigned i = 0; i < 8; i++) {
+        nounroll for (unsigned i = 0; i < 8; i++) {
             if (check_window && gb->io_registers[GB_IO_WX] == pixels + 7) {
                 goto activate_window;
             }
diff --git a/Core/gb.c b/Core/gb.c
index 783f10b..01f004f 100644
--- a/Core/gb.c
+++ b/Core/gb.c
@@ -1515,7 +1515,7 @@ static void reset_ram(GB_gameboy_t *gb)
         case GB_MODEL_CGB_E:
         case GB_MODEL_AGB_A:
         case GB_MODEL_GBP_A:
-            for (unsigned i = 0; i < sizeof(gb->hram); i++) {
+            nounroll for (unsigned i = 0; i < sizeof(gb->hram); i++) {
                 gb->hram[i] = GB_random();
             }
             break;
@@ -1528,7 +1528,7 @@ static void reset_ram(GB_gameboy_t *gb)
         case GB_MODEL_SGB_PAL_NO_SFC: /* Unverified */
         case GB_MODEL_SGB2:
         case GB_MODEL_SGB2_NO_SFC:
-            for (unsigned i = 0; i < sizeof(gb->hram); i++) {
+            nounroll for (unsigned i = 0; i < sizeof(gb->hram); i++) {
                 if (i & 1) {
                     gb->hram[i] = GB_random() | GB_random() | GB_random();
                 }
@@ -1568,7 +1568,7 @@ static void reset_ram(GB_gameboy_t *gb)
                     gb->oam[i] = GB_random() | GB_random() | GB_random();
                 }
             }
-            for (unsigned i = 8; i < sizeof(gb->oam); i++) {
+            nounroll for (unsigned i = 8; i < sizeof(gb->oam); i++) {
                 gb->oam[i] = gb->oam[i - 8];
             }
             break;
@@ -1587,7 +1587,7 @@ static void reset_ram(GB_gameboy_t *gb)
             /* Initialized by CGB-A and newer, 0s in CGB-0 */
             break;
         case GB_MODEL_MGB: {
-            for (unsigned i = 0; i < GB_IO_WAV_END - GB_IO_WAV_START; i++) {
+            nounroll for (unsigned i = 0; i < GB_IO_WAV_END - GB_IO_WAV_START; i++) {
                 if (i & 1) {
                     gb->io_registers[GB_IO_WAV_START + i] = GB_random() & GB_random();
                 }
@@ -1604,7 +1604,7 @@ static void reset_ram(GB_gameboy_t *gb)
         case GB_MODEL_SGB_PAL_NO_SFC: /* Unverified */
         case GB_MODEL_SGB2:
         case GB_MODEL_SGB2_NO_SFC: {
-            for (unsigned i = 0; i < GB_IO_WAV_END - GB_IO_WAV_START; i++) {
+            nounroll for (unsigned i = 0; i < GB_IO_WAV_END - GB_IO_WAV_START; i++) {
                 if (i & 1) {
                     gb->io_registers[GB_IO_WAV_START + i] = GB_random() & GB_random() & GB_random();
                 }
diff --git a/Core/sgb.c b/Core/sgb.c
index 891a27d..8a29d50 100644
--- a/Core/sgb.c
+++ b/Core/sgb.c
@@ -168,7 +168,7 @@ static void command_ready(GB_gameboy_t *gb)
         if (gb->sgb->command[0] == 0xFB) {
             if (gb->sgb->received_header[0x42] != 3 || gb->sgb->received_header[0x47] != 0x33) {
                 gb->sgb->disable_commands = true;
-                for (unsigned i = 0; i < sizeof(palette_assignments) / sizeof(palette_assignments[0]); i++) {
+                nounroll for (unsigned i = 0; i < sizeof(palette_assignments) / sizeof(palette_assignments[0]); i++) {
                     if (memcmp(palette_assignments[i].name, &gb->sgb->received_header[0x30], sizeof(palette_assignments[i].name)) == 0) {
                         gb->sgb->effective_palettes[0] = LE16(built_in_palettes[palette_assignments[i].palette_index * 4 - 4]);
                         gb->sgb->effective_palettes[1] = LE16(built_in_palettes[palette_assignments[i].palette_index * 4 + 1 - 4]);
diff --git a/Makefile b/Makefile
index 077bad6..07354b6 100644
--- a/Makefile
+++ b/Makefile
@@ -216,6 +216,8 @@ ifeq ($(CONF),debug)
 CFLAGS += -g
 else ifeq ($(CONF), release)
 CFLAGS += -O3 -ffast-math -DNDEBUG
+# The frontend code is not time-critical, prefer reducing the size for less memory use and better cache utilization 
+FRONTEND_CFLAGS += -Oz
 STRIP := strip
 CODESIGN := true
 ifeq ($(PLATFORM),Darwin)
@@ -312,25 +314,25 @@ $(OBJ)/Core/%.c.o: Core/%.c
 
 $(OBJ)/SDL/%.c.o: SDL/%.c
 	-@$(MKDIR) -p $(dir $@)
-	$(CC) $(CFLAGS) $(FAT_FLAGS) $(SDL_CFLAGS) $(GL_CFLAGS) -c $< -o $@
+	$(CC) $(CFLAGS) $(FRONTEND_CFLAGS) $(FAT_FLAGS) $(SDL_CFLAGS) $(GL_CFLAGS) -c $< -o $@
 
 $(OBJ)/OpenDialog/%.c.o: OpenDialog/%.c
 	-@$(MKDIR) -p $(dir $@)
-	$(CC) $(CFLAGS) $(FAT_FLAGS) $(SDL_CFLAGS) $(GL_CFLAGS) -c $< -o $@
+	$(CC) $(CFLAGS) $(FRONTEND_CFLAGS) $(FAT_FLAGS) $(SDL_CFLAGS) $(GL_CFLAGS) -c $< -o $@
 
 
 $(OBJ)/%.c.o: %.c
 	-@$(MKDIR) -p $(dir $@)
-	$(CC) $(CFLAGS) $(FAT_FLAGS) -c $< -o $@
+	$(CC) $(CFLAGS) $(FRONTEND_CFLAGS) $(FAT_FLAGS) -c $< -o $@
 	
 # HexFiend requires more flags
 $(OBJ)/HexFiend/%.m.o: HexFiend/%.m
 	-@$(MKDIR) -p $(dir $@)
-	$(CC) $(CFLAGS) $(FAT_FLAGS) $(OCFLAGS) -c $< -o $@ -fno-objc-arc -include HexFiend/HexFiend_2_Framework_Prefix.pch
+	$(CC) $(CFLAGS) $(FRONTEND_CFLAGS) $(FAT_FLAGS) $(OCFLAGS) -c $< -o $@ -fno-objc-arc -include HexFiend/HexFiend_2_Framework_Prefix.pch
 	
 $(OBJ)/%.m.o: %.m
 	-@$(MKDIR) -p $(dir $@)
-	$(CC) $(CFLAGS) $(FAT_FLAGS) $(OCFLAGS) -c $< -o $@
+	$(CC) $(CFLAGS) $(FRONTEND_CFLAGS) $(FAT_FLAGS) $(OCFLAGS) -c $< -o $@
     
 # iOS Port