Can SASE application acceleration really make cloud apps faster?

Acceleration cannot fix poor application placement. If an application serves Australian users from London, or sends traffic through a distant region before returning to the user’s location, the underlying latency will still be significant. For globally distributed applications, regional deployments, replicated data stores, or a suitable CDN are often more effective than adding a transit layer.

SASE may improve the path, but it is not a substitute for putting workloads and data near the people who use them.

The benefit can be real when the normal internet path is congested or poorly peered. A SASE provider may have better peering, a less congested backbone, optimized routing, connection reuse, or TCP-level techniques that help long-distance connections. It can effectively get a user onto a stable private backbone quickly instead of relying on an unpredictable sequence of internet providers.

That said, a 20× improvement is unlikely to be typical. The vendor should test with your actual Manila and Singapore users, AWS regions, Microsoft 365 traffic, and SaaS applications rather than relying on a lab benchmark.

Treat this as a measurement exercise, not a feature claim. Capture a baseline and pilot result for median and tail latency, packet loss, throughput, login time, file-upload time, call quality, and complete application transactions. Break the results down by user location and application.

Also test failure modes and compare direct routing with SASE routing at different times of day. If the vendor cannot demonstrate consistent improvement for your real traffic from Manila and Singapore, the advertised throughput number probably says more about the test conditions than about your users’ experience.

Extra hops are not automatically slower if the added hop gets you onto a much better network. For example, a nearby point of presence might establish the client-side connection quickly, then carry traffic over the provider’s backbone before reaching the application. This can be especially helpful for users connecting from Asia to applications in Europe.

The effect is usually much smaller when users and applications are already close together and the direct route has good peering. In that situation, forcing traffic through another network may add complexity without improving performance.