Redis is not slow. Your integration is.
A senior architect at one of our advisory sessions told us "Redis is slow." It was a great moment, because the rest of the call was about why that was not true.
Redis is not slow. Redis is a single-digit-millisecond key-value store running in RAM. When someone says "Redis is slow," they almost always mean: "the integration between my application, my ORM, my cache layer, and Redis is slow."
Where the latency actually lives
- Serializing and deserializing the wrong objects
- Cache-miss storms because invalidation was too aggressive
- Network hops in a misconfigured topology
- Lock contention in the client library
- Caching at the wrong granularity (per-row instead of per-view)
Redis is the fastest part of the system. If your app feels slow, the integration is the suspect. That is uncomfortable, because the integration is something you built, and the integration is what redfly replaces with a generated, tested implementation.
What good looks like
Sub-200ms page loads on commodity database hardware. Cache hit rates above 90% on read-heavy workloads. Cache invalidation that is correct by construction, not by code review. None of that requires faster Redis. It requires a smarter cache layer between Redis and your application.