Onboarding Friction for EU Entity with Non-EU Liquidity

We're an EU-regulated entity (small AUM, sub-100M, but growing rapidly) looking to expand our institutional liquidity sources beyond our current roster of two Tier 1 banks. The challenge we're consistently running into, particularly with some of the larger, non-EU FX prime brokers or prop-trading firms that offer better spreads on less conventional crosses, is the onboarding process. KYC/KYB seems to be less of a hurdle than the bespoke legal reviews and, frankly, the sheer back-and-forth required to get even initial term sheets. It feels like a disproportionate amount of effort for the initial volume we can commit. Has anyone found efficient ways to navigate this, or specific types of firms that are more agile in their institutional client onboarding for entities of our size looking for niche liquidity?