Well, I'm not suggesting to make her good. I'm suggesting to make her neutral, or just a relucant ally of the heroes that ends up going off on her own later, to do things beyond equestria, and leaving equestria behind.
At the same time, I don't want it to end with the Mane 6 and Starlight using OP magic to try to defeat a villain like what they're done the last million times, that makes it very repetitive and shows the lack of effort from the writers, how about coming up with something creative for once?