Reducing tool and service sprawl improved system performance more than optimization
In one of the systems I worked on, performance issues were initially approached through optimization — caching, tuning, and infrastructure changes.
However, the biggest improvement came from reducing the number of services and integrations involved in the workflow.
The original setup had multiple dependent services, each adding latency and increasing failure points.
By consolidating responsibilities and shortening dependency chains:
request paths became shorter failure points were reduced system behavior became easier to reason about
The overall performance improvement was more significant than any isolated optimization effort.
In practice, reducing system complexity had a larger impact than trying to optimize a complex structure.