Processors are civilian contractors in each recruiting office from my understanding that does an independent review of every single packet that comes through, be it regular board or immediate select so I'd assume the same for BDCP too. For reference, it took me maybe 6-8 weeks to get mine processed and uploaded upon the initial submission--which isn't to the board, but to the processors for review; I also had it sent back for a tweak about 2 weeks in. The major delay according to my recruiter was a big processor delay that went on for who knows how long but just be aware that it could happen for any station any time unfortunately; I've seen others on here comment that their's got processed and uploaded to the board in 2 days.
As MowinThaAir suggested emmah12 I'd also suggest you try and convince your recruiter or processor to get your packet in for this board before the 8/15 deadline if they don't have any other urgent packets submitted before you that also need to meet the same deadline.