A limitation of using a legacy proxy compared to Netskope's solution is that to enforce policies, traffic needs to traverse back through a customer's on-premises security stack. This creates latency, bandwidth, and scalability issues for remote users and cloud applications. Netskope's solution, on the other hand, leverages a cloud-native architecture that provides high-performance and scalable inspection of traffic from any location and device. References: [Netskope Architecture Overview]