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.
While Maeve is very difficult to pin down exactly, champs like Drogoz or Evie don't necessarily have to aim precisely in order to hit her. Additionally, abilities like Seedling are extremely hazardous to Maeve, because they have a very large AoE.