Onboarding Friction for EU Entity with Non-EU Liquidity Providers

Running into some persistent friction lately and wanted to see if anyone else has navigated this successfully. We're an EU-based prop firm looking to diversify our liquidity sources beyond the usual suspects within the EEA. The goal is better pricing and depth, particularly for certain exotics and higher-volume $FX pairs. However, the onboarding process with a couple of non-EU providers (think APAC and LATAM regions) has been a real headache.

Specifically, the KYB requirements are brutal. It feels like a moving target – provide document A, then they ask for document B which contradicts A's intent, then they want certified translations of things that don't even exist in that format in our jurisdiction. The due diligence cycles are extended, communication is often delayed due to time zones, and the lack of a standardized approach across these various providers is making what should be a straightforward integration into a multi-month saga. Anyone found an efficient way to streamline this or perhaps a common pitfall to avoid when dealing with the disparate regulatory landscapes?