That ("priority processing") has nothing to do with the applications which are currently (and at the time you applied) being accepted under the QSW program.
Which category of the following did you meet *at the time of your application*?:
- you submit an application under the Programme de l’expérience québécoise (Québec experience program);
- you have enclosed a valid employment offer with the application for a selection certificate that you submitted under the Regular Skilled Worker Program;
- Citizenship and Immigration Canada has informed you that it has agreed to process your application for permanent residence in Canada;
- you are a temporary resident and eligible to submit an application for a Certificat de sélection du Québec.