On an avg processing time for most applicant is 4-6 months(from AoR to PPR) :
https://www.canadavisa.com/canada-immigration-discussion-board/threads/stages-from-aor-to-ppr.496392/
it can be a lot quicker depending on factors such as:
- your country of origin
- your current country of residence
- your travel history (extended travel history requires lot of background, security checks)
- work experience (if you have been in govt service, military services background checks may take some time)
- quality of documentation (education, work experience records, police certificates, proof of relatives if you are claiming points for it etc., most of these are part of Eligibility phase of your application)
- last but not least, the case officer themselves, some are lenient and some are harsh. Visa office processing your application plays a role in processing of your application