Onboarding Friction: KYC/AML for non-US entities with US-based liquidity

Anyone else hitting consistent walls with KYC/AML when trying to onboard non-US entities to US-based liquidity providers or prime brokers? The due diligence seems disproportionate to the actual trade size initially, delaying activation for weeks. It's not just the docs themselves, but the back-and-forth on interpretation and additional asks. Is there a better way to navigate this from the non-US entity side, or are certain jurisdictions just inherently more problematic for US providers to vet efficiently?