There are some factors like how easily IRCC can verify the information provided by an applicant.. there is nothing one can do about it other than wait, the more easily they can verify documents, quicker the file moves, VO alone cannot and does not verify everything on a file and in such cases, they rely on other other resources and intel to verify the given information. Non-EE files typically moves slow than EE, but then against such long wait time, applicant in non-ee bypass many other criteria like high CRS, IELTS (if Teer 0/1), ECA (for certain programs), age etc, etc. So there is some wait, but you will eventually see progress over the period of time within the standard processing time.
It's quite normal for IRCC to go silence after AoR with non-EE files, you can expect something (MR/MP/ADR/PAL etc) in couple of months from now (obviously in phases, one or two at a time). If anything comes before that, you'd be lucky. Also, some nocs & some provinces are deemed priority processing, so you will see some of those non-EE files will move quicker than others.
