KYB Friction on Prop Firm Onboarding - Any Solutions?

Starting to look at a few prop firms more seriously, and the onboarding process for the good ones seems to be a real drag. I'm finding that the Know Your Business (KYB) checks, especially around proof of funds or source of wealth for some of these firms, are quite intrusive and slow. It's almost like a full bank-level review, which I guess makes sense for their risk, but it's becoming a bottleneck for getting funded quickly.

Anyone else experiencing this, or found a prop firm that's managed to streamline this without compromising compliance? Curious if there's a particular firm or a pre-emptive step I can take to make the KYB process smoother.