One thing I don't understand about the potential for crypto HFT is how to deal with the long transaction verification times. With bitcoin, it can take a tx se

One thing I don't understand about the potential for crypto HFT is how to deal with the long transaction verification times. With bitcoin, it can take a tx several mins to be verified on the blockchain. I've dabbled in bitcoin HFT for a few years, but am always stuck when it comes to this point. There are a ton of arbitrage opportunities between exchanges, but the long transaction times are the equivalent of IEX's "speedbump." How do you deal with this? *Note: IEX is the exchange started by Brad Katsuyama, one of the main figures in Michael Lewis' outstanding "Flash Boys."