Early in my career, I have read a blog post from someone senior about boring/entertaining work. In short it stated to following:
Even if you work on exciting things, the project will always have boring parts.
You'll need to develop these parts as well, so be prepared and show the same respect to all parts.
So, I'd personally rather work on all parts equally well rather than winging boring parts and create something subpar.
Just like the rest of us.