How can I avoid using coder.extrinsic in MATLAB function block for using set_param?

Hi, I am trying to call a m file from Simulink. I have to use set_param in my code in MATLAB function block, but I am getting this error:

Function 'set_param' is not supported for code generation. Consider adding coder.extrinsic('set_param') at the top of the function to bypass code generation.

But I rather not to use it because it reduce the speed of simulation strongly.

Any idea?

[Amira chriki]

have you found the answer please ?