Once again, I thank you, Ksand24,
I just need to be patient, along with everyone else,
Yeah, they seem to have sneakily changed a lot of the info on the VFS Global website lately

. Just now, I had an answer all prepared to tell you that yes, you could upgrade to priority and then I checked the website for the instructions, and they were gone!
However, you're already almost 1 month into the processing time, and you still have 1.5 months until you plan to travel, so to be honest, I'm not sure it would be worth it to upgrade, even if they still said it was allowed.
The longest I've seen non-priority take in the summer is 2-3 months, and by the time you get to 14th September, you won't be far off the 3-month mark anyway. It's not like you have to travel in the next 2 weeks or anything - you still have plenty of time.