Sending lots of OSC messages slows down the rendering

[gllmAR]

When sending a lot of OSC commands the software lag.

Smooth speed ramping is not possible.

There is a lot of print (every osc command is printed)
The software wait until it has finish to print and then it update the playback speed.

[aalex]

We should avoid printing when we toggle play/pause state.

Next, we might create a queue for the received messages and handle them once before each frame rendering.