In my experience, if speed is your top priority, then a white label crypto exchange is definitely worth considering. I initially looked into building an exchange from scratch, but once I started estimating the development time, hiring costs, security requirements, and testing process, it became clear that it would take much longer than I expected. Blog link : https://medium.com/@gwenadele29/how-to-start-a-cryptocurrency-exchange-using-white-label-crypto-exchange-software-718a33a31aa7