Possible Buffs for M551 Sheridan?

As the M551 in its current state is extremely bad, what are some possible ways to buff it other than reducing its battle rating? Also if its BR was reduced how would it impact its performance and the br bracket?

The only issue that i find was the atgm drop at launch other that it is fine

Well the ATGMs don’t do any damage and if you don’t kill(which is always) you’re stuck with an 18s reload which is longer than the time it takes for the gunner to come back.
Long range is also not much better as the ATGMs require you to keep LOS until impact which keeps you vulnerable (exacerbated by ATGMs revealing your position).