Onboarding speed and fees with prop firm withdrawals

Curious to hear about others' experiences regarding the friction involved in getting started with various prop firms, specifically on the KYC/AML side. Some firms I've looked at seem to have quite the gauntlet, others are relatively smooth. More importantly, once you're funded and hitting targets, what's the real-world experience with payout reliability and associated fees? I'm not talking about the advertised percentage, but the actual cost in terms of withdrawal fees, potential currency conversion losses if they pay in a different base, and the time it takes for funds to hit your account. It's one thing to pass a challenge, another to consistently get paid efficiently without it eating significantly into your bottom line. My current firm's process is a bit clunky, and I'm weighing if a move for better infrastructure is worth the hassle of a new evaluation.