Tier 1 application timeline

Does anyone know the timeline for Tier 1 approval recently?
Has it been impacted by Covid delays?
Can anyone share their experience, when they applied and when they could start their job?
I have no criminal history; no drug or alcohol issue no tax issue. I am however a dual citizen and also worked as a contactor for one of the ministries of Afghanistan back in 2018 for two months only. The work was performed in US, and was hired to do an independent contract.
Thank you

No timelines, really.

Time of processing gets down to the specialists in the office. Some agencies are better at PERSEC than others. Your mileage will vary.

Thank you, is there an average for someone that has a clean record?