Unfortunately, there is no specific answer but there are guidelines, which can assist us in determining an average processing time.
Although Immigration, Refugee and Citizenship of Canada provides us with approximate processing times on their website, this may not be the case in reality. The processing times always change and although Immigration, Refugee and Citizenship of Canada regularly update the time frames, each application will have its own processing time depending on the specific facts and complexities. As immigration consultants, we have submitted hundreds of immigration applications and we can provide you with our approximation of the processing times based on our experiences of each visa office in Canada and outside Canada.
If your Spousal Sponsorship application is prepared carefully and contains all required information and documents, this will definitely reduce the processing time.