Believe it or not you may be eating ?TOO LITTLE? calories in your
diet, thus slowing down your metabolism. At 6?2 and 215 lbs 2,000 calories is baseline of what you might be needing, now add on top of that your energy requirements for your workouts and you can see that 2,000 calories is not enough.
Personally I eat roughly 1500-2000 calories a day over 5-6 meals, cardio 3-4 times a week from 30-60mins.