The best way around this. Use a simple lux meter to find out if that corner is pulling in extr ppf, or the temp issue might be dif. Does the corner plants soil get drier quicker, if so, that corner is in optimal range, nutrient uptake can be a tricky thing. High RH can slow down nutrient uptake, temps of course.
The whole diagram thing, great and all you understand your layout but its a tent. And well, the environment wouldn't change much per sf. So, ye, just rotate your ladies and give em all a day or 2 in your perfect spot. Should bring them all in that range. But tbh, it's very hard to say which plant is doing better as NO plant will EVER grow the same.
That's just my theory anyways. High ppfd and good ventilation. Which can be achieved throughout your entire setup once you figure out what it is that's giving you that extra kick. Happy hunting.