Yes it IS because you weigh a lot. That number INCLUDES a deficit for losing weight. I started around there (weight and calories) and (with exercise on the treadmill) I lost ~2.5 pounds a week FOR MONTHS,until close to 200pounds.
Just because you want to lose weight doesn't mean you need to starve your body to do it. Start with that 1900-2100, you will probably lose AT LEAST a pound a week for a while, probably more like 2-3 at first, especially if you exercise. I eat that much a day now, am in the 150's, with only moderate exercise twice a week and am still losing weight. Don't starve yourself
I'm on the "Eat-as-much-as-possible-while-still-losing-weight" diet. It's working.