Congratulations !
You just found the amazing function of the killing death of TVPaint !
And as its name says : you just won a new barbecue...
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
Just joking
This is actually a new function which will allow TVPaint to make your processors work between 2 actions.
Why? Because, with new processors, some of them will go to sleep between 2 actions, when the software don't need them. And it takes a long time to wake up a processor when we need it, so the software can seem laggy when starting to draw something.
So the barbecue option allows TVPaint to keep your processors up, so it will be faster immediatly.
And the final question to answer is : Why is this option called Barbecue ?
It's because it will consume much more power than the normal use and some tablets or laptops could become hot. And the other thing is, it drains your battery faster too.