Anyone else still wrestling with KYB for institutional clients?

We've been scaling up our platform for prop trading firms and the KYB process, especially for non-US entities, feels like a constant battle. The documentation requirements vary so wildly, and getting accurate turnaround times from some of our partner banks/PSPs is a nightmare. It directly impacts our onboarding velocity and client satisfaction. Any thoughts or strategies on how to streamline this without compromising compliance?