Performance degradation from unpolished updates and middleware issues

6/10 Medium

FastAPI shows significantly lower request throughput compared to Node.js and Golang on identical hardware during benchmarks. Users report poor middleware performance and approximately 50% performance loss when using annotated dependencies.

Category
performance
Workaround
partial
Stage
deploy
Freshness
persistent
Scope
single_lib
Upstream
open
Recurring
Yes
Buyer Type
team
Maintainer
slow

Sources

Collection History

Query: “What are the most common pain points with FastAPI for developers in 2025?4/4/2026

One user noted a significantly lower request throughput compared to Node.js and Golang on the same machine during a benchmark test. Concerns were also raised about poor middleware performance and an almost 50% performance loss when using annotated dependencies.

Created: 4/4/2026Updated: 4/4/2026