diff --git a/include/Game.h b/include/Game.h
index ec5230d..95ac7ad 100644
--- a/include/Game.h
+++ b/include/Game.h
@@ -27,6 +27,7 @@ struct Cpu
     sf::Vector2f pos{};
     sf::Vector2f prevPos{};
     float velocity{};
+    float speed{5};
     unsigned int score{};
 };
 
@@ -103,7 +104,7 @@ private:
 
     double accumulator{};
 
-    double playTime{};
-
+    TimeDuration playTime{};
+    std::chrono::seconds totalSeconds{};
 
 };
\ No newline at end of file
diff --git a/src/Game.cpp b/src/Game.cpp
index dfcb3ae..e222eb6 100644
--- a/src/Game.cpp
+++ b/src/Game.cpp
@@ -95,7 +95,8 @@ void Game::run()
         TimeDuration duration = currentFrameStartPoint - lastFrameStartPoint;
         const double frameTime = duration.count();
 
-        playTime += frameTime;
+        playTime += duration;
+        totalSeconds = std::chrono::duration_cast<std::chrono::seconds>(playTime).count();
 
         lastFrameStartPoint = currentFrameStartPoint;
 
@@ -228,14 +229,19 @@ void Game::render()
 
 void Game::updateCpu()
 {
+    if (totalSeconds > 0 and totalSeconds % 10 == 0)
+    {
+        cpu.speed += .5f;
+    }
+
     if (ball.pos.y > cpu.pos.y)
     {
-        cpu.velocity = 5;
+        cpu.velocity = cpu.speed;
     }
 
     if (ball.pos.y < cpu.pos.y)
     {
-        cpu.velocity = -5;
+        cpu.velocity = cpu.speed * -1.f;
     }
 
     if (ball.pos.y == cpu.pos.y)
@@ -262,9 +268,8 @@ void Game::collision() {}
 
 void Game::updateTexts()
 {
-    const int totalSeconds = static_cast<int>(playTime);
-    const int minutes = totalSeconds / 60;
-    const int seconds = totalSeconds % 60;
+    const auto minutes = totalSeconds / 60;
+    const auto seconds = totalSeconds % 60;
 
     const std::string secondsStr = (seconds < 10) ? "0" + std::to_string(seconds) : std::to_string(seconds);
     const std::string minutesStr = (minutes < 10) ? "0" + std::to_string(minutes) : std::to_string(minutes);