I have limited experience with Borkum Riff. But, in my (albeit, limited) experience, if tobacco burns hot, it's most likely too wet. I used to think that keeping tobacco moist was better, but more moisture means hotter temps are required to keep the bowl going.
Some guys prefer their baccy almost crispy. Might sound odd, but the drier the baccy, the lower the temp required to keep it burning.
I assume (and anyone, feel free to correct me) that Borkum Riff has a good amount of humectant, which may be propylene glycol, to keep it fresh on the shelf.
So, I would suggest spreading the tobacco out on a plate, and letting it dry. Most likely, it would require a few days. I've done this with tobacco (loose cut) that I deemed too moist, with pleasant results. Be sure to check the tobacco occasionally. It shouldn't be goopy (as it might be from a fresh pouch), but shouldn't crumble in your fingers either. It will take some trial and error to see what moisture level works for you.
and I wholeheartedly agree with Mike S. smoke what you like. Don't let anyone tell you any different. Although, it is true that there are plenty of choices out there, you might be limited based on where you live.
Is there anyway to talk to your local tobacconist about ordering some different tobaccos? Does he/she smoke pipes? Cigars maybe? Wouldn't hurt to strike up a conversation with a manager/owner. If they bring in some higher quality tobaccos, maybe they'd see an increase in business.
lastly, FWIW, my father smoked cherry BR (I'm pretty sure it was the cherry liquer, not the cherry cavendish) and he said it burned him bad. I suggested to him what I told you here.
Good luck!