The ongoing KYB/AML tango with new payment providers

Just curious how others are managing the seemingly endless loop of 'enhanced due diligence' when onboarding new payment service providers (PSPs) or even just new banking partners. It feels like every time we expand or seek a bit more redundancy in our payment rails, we're dragged through weeks of documentation, proof of funds, and proof of proof of funds. It's not just the time sink; the goalposts seem to shift mid-process. Are there any clever solutions out there for streamlining this, or is it just the cost of doing business in a regulated space? At this point, I'm half-expecting them to ask for my firstborn's tax returns.