This is what IRCC states. That 80% cases are processed in 6 months time. They are updating their policies regarding application processing times. Many in this forum have had to wait much longer than 6 months as well (I had to wait 11 months), while for some the wait was less than 6 months (even 4 months in some cases). It depends on many things, like what kind of Security Screening is performed and how many agencies are involved in that. If you just submitted your application and got AOR, keep an eye on your online account and see when it goes to various stages, such as NA1, NA2, IP1, IP2, Meds Passed, etc. Sit back and enjoy the ride!