Buff auto rifles but give the suros a nerf at the exact same time. The issue is that the suros is way stronger than every other auto past the point where it is reasonable to say this is due to it being exotic. Auto rifles in general get nerfed hard to make up for the power of the suros when they need to be treated as two separate issues. In my opinion autos need to have very poor range but be capable of dealing the most damage per second of any primary up to about 50 feet or so. Until the balance shifts in this direction they will always be either too overpowered or underpowered because they are not fulfilling the proper role of an auto.