As Maeve, try jumping on top of your enemy to confuse them. Players do not tend to aim directly up, so the moment of delay is enough to land a few shots on them.
Maeve struggles against groups of enemies, so stick close to your team, especially if you are a support, because you can pressure her either fight, where she will most likely lose, or to flee.
Prowl cancelation is very important to know if using cat burgular. Right before ur about to throw the daggers at an enemy, activate prowl to get the bonus damg.