Looking at 2 PPRs for July and 1 PPR for Aug, this is what my thought is...
July and August application are moving fast...may be because change in procedure or new team is assigned. The team finishes completeness check and eligibility check real fast. Then after BG check passed, it forwards for final review and PPRs. For the inlanders it will still be the Ottawa office doing PPRs. For outlanders, it will be the local VO in the home country. Since there are not may outlanders getting ITA, the queue for EE PPR for local VOs may be very less. Hence they get PPR fast. But for inlanders, the team is still busy clearing PPRs for April and May guys.
So, I think, there is still some time for inlanders to get PPR though they are very close to that.
You are probably right , by looking at the statistics on this forum
I personally do not think there is any priority processing for LMIA or PNP guys.