Razira isn't the smartest lady in the world, but she's also not trying to be - she's happy with straightforward simple problems, and if something's complicated she's very capable of going "oh this other person has a plan, I'll support that". It works out well for her.
On the road as a paladin she has solved a lot of her problems in the past with "smite first, questions later" - but Konsi's influence towards "work it out peacefully" is very strong in that regard.
This is sort of why they work well together. Razira gives Konsi confidence (that she sorely needs) and Konsi's inclined to think things through (which Razira needs)