Few days ago Vitalik Buterin said : "Ethereum is doing five a second. Uber gives 12 rides a second. It will take a couple of years for the blockchain to replace Visa.”
Well, in December 2016, Visa told MyBroadband that VisaNet processes an average of 150 million transaction each day. Source. Say, it's around 1,700 transaction per second on average.
With the latest stress test, which was done 5 months ago, BitShares has proven to sustain successfully about 300 transaction per second on average,
with a peak of more than 3000 transaction per second, which beats PayPal and which is already like 8x to 15x of what Ethereum is able to handle today (there is different data available on how much Ethereum handles but it varies from 5 TPS to 20–40 TPS, and we count the greatest).
So why it is so undervalued despite it has a decentralized exchange!! I think they need to put some effort in marketing campaigns. I am sure in the long term this project has a bright future.
Actually, there have been a lot of blockchains that theoretically can beat that number, but stress tests are not really the same as real-case use. Ethereum upgrade with the next fork means it can match Visa's rate of transacting. In theory even alts like Litecoin recently proved to be able to do lightning quick transactions and this was across chains.
I know a lot of dex also want to do the same. It is just a matter of time.