During very high traffic, apps and chain drop the ball. Not their fault but most products cannot handle high tps while keeping a good user experience. A very good friend of mine who is a large trader on solana (+120k trades/year) came to try Cardano a few times and unfortunately it almost always ends up by "never again". A typical case was when there was high volume on a coin with high volatility and he looked at the chart and decided to hit the sell button... It took ~5-10min for the tx to proceed and by the time it went through, the price had fallen by 75%, which if he knew would have not sell at that price. Basically its more on the user experience side that we're lacking, cause products could adjust and anticipate price action without block confirmation. That's something we are working on with . If you cannot currently have instant trade because of the cardano blockchain, we might be able to make it feel like instant trade.