PSP KYC/KYB headache - anyone got a clean solution?

Seriously, the hoops some payment service providers make you jump through for basic corporate onboarding are ridiculous. We're a legitimate prop shop, not some fly-by-night operation, yet it feels like pulling teeth every time. It's impacting our deal flow. Is there anyone out there who's found a PSP that actually understands institutional clients and doesn't treat KYB like a state secret?