Learn English – Another way to say “is not best addressed”

phrase-requests

I need to write a text for programmers around the central idea that "performance is not best addressed at the code level".

This is a somewhat polemic issue, and I'd like to make my point as clearly and authoritatively as possible. I dislike the phrasing above because I feel there must be a more direct and natural way to say it, perhaps without the explicit negation "not best addressed".

Is there a better way of saying it?

Thanks,

Best Answer

Perhaps is better addressed outside the code level, but better still would be to specify what level actually would be the best (schematic level? management level? language level?).