Evolving KYC for high-frequency crypto trading accounts

I'm curious about how some of the more established compliance solutions are handling the nuances of KYC for accounts engaging in high-frequency crypto trading. It seems like the velocity of transactions, coupled with the pseudonymous nature of blockchain, presents unique challenges compared to traditional financial markets. What are the key red flags or behavioural patterns vendors are developing to identify suspicious activity without hindering legitimate, high-volume traders?