TVirtual Fitter use Quiet Option

I am performing a big amount of minimizations with TVirtualFitter. The minimization works correctly but i do not appear to be able to turn off the printing of all the steps of the fits on screen. I already have the lines:

TVirtualFitter *fitter;
fitter = TVirtualFitter::Fitter(0, 4);
Foption_t fitOption = fitter->GetFitOption();
fitOption.Quiet = 1;

_ROOT Version: 6.22/09 (compiled from source)
_Platform: Ubuntu 20.10
_Compiler: g++ 10.2.0

@moneta can surely give you some hints. But, by memory, I think the Fit() method has the option Q to do that.