Speed of taking flight orders into account

Currently I am doing flight control tests in X, Y and Z on a quad.
It works well but I would like the commands sent to be taken into account every second in the 3 axes simultaneously. Currently I send my orders every second and the drone takes into account the order every 3 to 4 seconds. It has a reaction time that is too slow compared to the information sent.
Do you have a solution to my problem?
Is there a parameter to modify in the pixhawk to make the drone more responsive or is it in the order of commands?
thank you in advance for your help
Good day and above all good health to you and your loved ones