title: Simulink simulating audio extremely slow
body: <p>I've creating following model:
  <a href="https://i.stack.imgur.com/kumKv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kumKv.png" alt="enter image description here"></a></p>
  
  <p>The simulation works as expected, but the speed of it is immensely slow. When listening to the output, it's just a small noise every once in a while, at the <code>T</code> indicator barely increases by 0.005/s. I understand the software has to run audio samples through the algorithm constantly, but the simulation being this slow makes me concern about when I have to use it in practice, as it then has to be used on a Microphone on a Raspberry Pi in real-time. </p>
  
  <p>Am I using some bad blocks, is my signal set-up in a bad manner, what can I do to increase the performance of the system? </p>
  
  <p>EDIT - Info from my profiler:
  <a href="https://i.stack.imgur.com/uaN1r.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uaN1r.png" alt="enter image description here"></a></p>