diff --git a/src/Backends/Audio/SDL2.cpp b/src/Backends/Audio/SDL2.cpp
index 64b3413b..55e9f97c 100644
--- a/src/Backends/Audio/SDL2.cpp
+++ b/src/Backends/Audio/SDL2.cpp
@@ -12,6 +12,7 @@
 
 #include "../../Organya.h"
 #include "../../WindowsWrapper.h"
+#include "../../CommonDefines.h"
 
 #define MIN(a, b) ((a) < (b) ? (a) : (b))
 #define MAX(a, b) ((a) > (b) ? (a) : (b))
@@ -70,7 +71,8 @@ static void SetSoundPan(AudioBackend_Sound *sound, long pan)
 	sound->volume_r = sound->pan_r * sound->volume;
 }
 
-static void MixSounds(float *stream, unsigned int frames_total)
+// Most CPU-intensive function in the game (2/3rd CPU time consumption in my experience), so marked with attrHot so the compiler considers it a hot spot (as it is) when optimizing
+attrHot static void MixSounds(float *stream, unsigned int frames_total)
 {
 	for (AudioBackend_Sound *sound = sound_list_head; sound != NULL; sound = sound->next)
 	{
diff --git a/src/CommonDefines.h b/src/CommonDefines.h
index 5b616ffb..9e458bdc 100644
--- a/src/CommonDefines.h
+++ b/src/CommonDefines.h
@@ -10,6 +10,10 @@
 #define TILES_TO_UNITS(x) ((int)((x) * (0x200 * 0x10)))
 #define UNITS_TO_TILES(x) ((int)((x) / (0x200 * 0x10)))
 
+#ifdef __GNUC__
+#define attrHot __attribute__((hot))
+#endif
+
 enum Collisions
 {
 	COLL_LEFT_WALL = 1,     // Touching a left wall