Onboarding Friction for Mid-Sized Operators

We've been scaling up our platform for digital asset settlement, and the onboarding process with a few major liquidity providers and payment processors has been... challenging. It's not just the KYC/KYB document dump, which is expected, but the extended review times and the seemingly arbitrary differences in requirements even between divisions of the same institution. Specifically, the hoops for what they deem 'sufficient' UBO verification for a company of our size, past an initial funding round, feels excessive. Anyone else finding this to be a growing bottleneck, or have you found particular approaches that smooth out the 'black box' review periods for new accounts, especially concerning crypto-related flows?