What is the downside of Dex?

As a keen observer of the crypto and finance landscape, I'm curious to understand the potential downsides of decentralized exchanges, commonly known as DEXs. While they offer the promise of greater transparency and decentralization, are there any significant drawbacks? Do DEXs face scalability issues, especially with the ever-increasing demand for crypto transactions? What about regulatory compliance - are DEXs at a higher risk of violating regulatory frameworks? And lastly, how secure are these platforms, given the rise in cyberattacks and hacks in the crypto space? Understanding these potential downsides would help investors and traders make more informed decisions.