Weekly average calories below BMR?

Hi all

My weekly average is currently hovering around the 1500kcal mark (bit less 2 weeks ago, bit more last week, etc) and, according to my current weight, that's around 350kcal less than my BMR.

I'm losing around 1kg-1.5kg a week, which I think is just from the first few weeks of calorie counting.

Should I up my calories to hit 1850kcal average a day (closer to my BMR, but still lower than my TDEE, which is around 2250kcal)?

Libra says I'm Obese Class 2 at the moment, as I know obese/overweight people can last a bit longer eating at a higher deficit.

Thanks