Chance
My Keurig is the smallest one they make. No reservoir and takes the same amount of time as yours. So they sound very similar. Not sure why the Keurig is rated at 1500 watts.
I have a small 5 cup coffee maker but it requires it to run longer in order to keep the coffee hot. I thought the Keurig was the better choice. I hate to purchase another coffee maker but that may the solution. I can do without many creature comforts but I need my coffee in the mornings!