I was just banned for 30 days for unfair advantages and I believe that this mod was the reasoning of that ban so just saying this is could be a problem for other people

Hi, sorry to hear that! This can indeed be the case, as Shoulder Surfing Reloaded does modify player movement, as long as you are not exclusively using the dynamic crosshair with coupled camera. There is no way around it. That being said, you should not get banned for having the mod installed. Only when you are using the Shoulder Surfing Reloaded perspective, you might get in trouble. Use at your own risk!