enhance

Signed-off-by: Joe Elliott <number101010@gmail.com>

CHANGELOG.md

@@ -5,6 +5,7 @@
 * [ENHANCEMENT] Tag value lookup use protobuf internally for improved latency [#3731](https://github.com/grafana/tempo/pull/3731) (@mdisibio)
 * [ENHANCEMENT] Improve use of OTEL semantic conventions on the service graph [#3711](https://github.com/grafana/tempo/pull/3711) (@zalegrala)
 * [ENHANCEMENT] Performance improvement for `rate() by ()` queries [#3719](https://github.com/grafana/tempo/pull/3719) (@mapno)
+* [ENHANCEMENT] Use multiple goroutines to unmarshal responses in parallel in the query frontend. [#3713](https://github.com/grafana/tempo/pull/3713) (@joe-elliott)
 * [BUGFIX] Fix metrics queries when grouping by attributes that may not exist [#3734](https://github.com/grafana/tempo/pull/3734) (@mdisibio)
 * [BUGFIX] max_global_traces_per_user: take into account ingestion.tenant_shard_size when converting to local limit [#3618](https://github.com/grafana/tempo/pull/3618) (@kvrhdn)