Roger that. I keep asking the bitcoin fanboys here what is the maximum theoretical transaction rate for Bitcoin and always get a blank stare and crickets chirping. People complaining about the Coinbase servers freezing when the price spikes don't understand that rate limit is what they are getting caught in and a lot of people try to trade bitcoins. It's a Bitcoin FATAL DESIGN FLAW that will cause it to crash and burn as more people start using it. Bitcoin was a ctypto nerd's experiment and never designed for real world transaction rates.
Cryptocurrency exchanges process trades in-house, without the need to access a blockchain, except for transmitting currencies in or out.
Even so, blockchain technology allows for one of the fastest transmission means for money that's possible.
When is the last time you've sent money from one bank to another, or waited for a credit card company to put money back into your account after a return? It takes days.
You've been on many threads posting many lies about many things. This is but one example.
All exchanges, including commodities and stock exchanges from time to time experience transaction delays due to increased activity. Cryptocurrency exchanges are no exception.