Thoughts on PSP onboarding friction for higher volume accounts?

Been looking at a few new payment service providers lately to handle some increased flow, particularly around cross-border transactions. The onboarding processes have been surprisingly varied, with some asking for an almost absurd level of detail on the company's ultimate beneficial owners and funding sources, even for established entities. It feels like they're still largely built for a different era of client. Anyone else finding the KYC/KYB for higher volume, legitimate operations to be a significant bottleneck lately? Specifically curious about experiences with firms handling larger ticket items, where the initial setup can take weeks, impacting our ability to move quickly on new initiatives. Is there a gold standard out there that balances compliance with operational efficiency?