those smaller aluminum bass boats usally had 45-55lb motors and are fairly adequate in that application, that being said make sure all cells on your battery are good if you feels its weak.
if updating to a minn kota cable steer 24vt make sure you have enough room for all three batterys, the minnkota foot pedal rather large as well you might want to trial fit it with the front pedestal seat in.
also motor heavier. lost 2mph when I put a kota on