Too high heart rate = no/low weight loss?

First of all How long have you been training like this and what are your goals? If you've been at it for a couple of weeks then Keep doing what you are doing till you see results. It shouldn't take you that long to see results as far as leaning out depending on your nutrition. Keep doing this for the next 30 days and also include some fastest cardio. First thing in the morning do cardio on an empty stomach to burn fat if you are trying to lean out. Keep protein intake 1gram to 1.25g per pound of body weight to maintain muscle. Example you weigh 140 then Keep your intake 140 plus of protein per day with some good fats and Keep you carbs moderate.