fixed timer functions

src/core/Config.h

@@ -30,6 +30,9 @@ namespace Config {
         constexpr double ARR_RATE = 40.0;          // Auto Repeat Rate in ms
         constexpr float LEVEL_FADE_DURATION = 3500.0f; // Level background fade time in ms
         constexpr int MAX_LEVELS = 20;             // Maximum selectable starting level
+        
+        // Gravity speed multiplier: 1.0 = normal, 2.0 = 2x slower, 0.5 = 2x faster
+        constexpr double GRAVITY_SPEED_MULTIPLIER = 1;
     }
     
     // UI Layout constants  

src/core/application/ApplicationManager.cpp

@@ -512,6 +512,11 @@ bool ApplicationManager::initializeGame() {
     m_game = std::make_unique<Game>(m_startLevelSelection);
     // Wire up sound callbacks as main.cpp did
     if (m_game) {
+        // Apply global gravity speed multiplier from config
+        m_game->setGravityGlobalMultiplier(Config::Gameplay::GRAVITY_SPEED_MULTIPLIER);
+        // Reset to recalculate gravity with the new multiplier
+        m_game->reset(m_startLevelSelection);
+        
         m_game->setSoundCallback([&](int linesCleared){
             SoundEffectManager::instance().playSound("clear_line", 1.0f);
             // voice lines handled via asset manager loaded sounds