Fishchis - I think we're on the same page.
A roast (beef, pork, whatever) needs to roasted. It actually takes less time and effort and comes out brown on the outside and perfect doneness inside with a meat thermometer.
Hey, give low & slow a shot for ribs next time and see how they compare. 225* for 4 to 4.5 hours on a grill or smoker.
I've done ribs in a pressure cooker too. 25 minutes and then a quick broil. Not bad but nothing compares to the low and slow grillin' method in my opinion, but it's good to experiment.
Now, a steak, chops, and quite a few other dishes, Sous vide all the way
Good luck with the keto. I just lost 20 lbs on keto too. It's the way to go to shed pounds quick and easy to do (well, relatively speaking).