I would let the bees replace her if you know of other hives around. Easy simple, the bees get what they want. If all else fails buy one.
You could also give them a frame of emerging brood from another hive if the population is low from her poor egg-laying.
Superceder in packages is somewhat common when the population mix of bees is towards the older age or drone heavy. They start off good but can decline quickly after 3 weeks until new brood begins to emerge.
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