In a “normal approach” with low airspeed, your AOA is too high and you must reduce it. Period
Not necessarily. It depends. If you are on correct glide path your low speed is due to insufficient thrust and just adding thrust will do the job. Pitcthing down for speed will take you below the path then you pitch up for GS adding thrust then when on correct path you will have to reduce thrust again. If the speed was dropped due going above then pitch down and pick up the speed and path. Flying correct path with sustained low speed is insufficient thrust, just add it.