Perf improvement: json_middleware

[pr-benchmarks]

Scenario	Environment	Date	Old RPS	New RPS	Change	Deviation	StDev	Dependencies
json_middleware [Fixed]	Json 400k 2- Trends Intel Linux	03/02/2025 22:09:10	11,774	11,795	0.18 % (21) 👍	4.59 σ	4.62	Changes Name Version Diff

PowerBI Dashboard

@sebastienros