I've also tried to add just a couple of lands, to
accelerate everything but keep the "mostly manaless" theme as far as possible:
https://deckstats.net/decks/38436/2388237-manaless-but-with-just-a-littlIt's just 4x + 4x, not enough to cast anything on its own, but for Affinity cards they basically count double!
Of course it's up to you to decide if this makes that deck uninteresting or not (and that's why I've cloned to a new one, instead of editing this one – this will stay pure!).