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Currently chargeTakerFee is expensively loading all the pool manager params. This lowers what it loads to be the minimum amount (which may still be too large in general) but should lower costs a bit.
This reduces gas costs by at least 10k gas per swap, potentially more.
What is the purpose of the change
Speedup
chargeTakerFee
which is too gas expensive and CPU intense. We need to further revisit this later, though these terms may be less bad after the fee tracker changes. (This, plus the fee tracker changes has the potential to 5x reduce this overhead. Not expecting it to be that good though, and still think this needs rethinking)Testing and Verifying
This should be covered by existing tests