Onboarding Complexity for Niche Payment Channels

We're currently looking to integrate a new payment rail for a specific geographic market, primarily for smaller, high-frequency transactions. The challenge we're hitting isn't so much the technical API integration, but the disproportionate KYB requirements from potential PSPs given the average transaction value. It feels like a full-blown institutional vetting for what amounts to micro-payments, creating significant friction on our end. Anyone else experiencing this imbalance and found a PSP willing to adapt their processes for volume over value?