diff --git a/pkg/query-service/app/integrations/messagingQueues/kafka/sql.go b/pkg/query-service/app/integrations/messagingQueues/kafka/sql.go
index 67b32938f0..05577ab8b9 100644
--- a/pkg/query-service/app/integrations/messagingQueues/kafka/sql.go
+++ b/pkg/query-service/app/integrations/messagingQueues/kafka/sql.go
@@ -329,7 +329,7 @@ func generateNetworkLatencyThroughputSQL(start, end int64, consumerGroup, partit
 	query := fmt.Sprintf(`
 SELECT
     attributes_string['messaging.client_id'] AS client_id,
-	attributes_string['service.instance.id'] AS service_instance_id,
+	resources_string['service.instance.id'] AS service_instance_id,
     resource_string_service$$name AS service_name,
     count(*) / %d AS throughput
 FROM signoz_traces.distributed_signoz_index_v3
@@ -374,7 +374,7 @@ SELECT
     COUNT(IF(has(attributes_string, 'messaging.kafka.consumer.group'), 1, NULL)) = 0 AS cgroup,
     COUNT(IF(has(attributes_number, 'messaging.message.body.size'), 1, NULL)) = 0 AS bodysize,
     COUNT(IF(has(attributes_string, 'messaging.client_id'), 1, NULL)) = 0 AS clientid,
-    COUNT(IF(has(attributes_string, 'service.instance.id'), 1, NULL)) = 0 AS instanceid
+    COUNT(IF(has(resources_string, 'service.instance.id'), 1, NULL)) = 0 AS instanceid
 FROM signoz_traces.distributed_signoz_index_v3
 WHERE 
     timestamp >= '%d'
diff --git a/pkg/query-service/constants/constants.go b/pkg/query-service/constants/constants.go
index 33caecb0d6..7d6f087188 100644
--- a/pkg/query-service/constants/constants.go
+++ b/pkg/query-service/constants/constants.go
@@ -90,7 +90,7 @@ func EnableHostsInfraMonitoring() bool {
 	return GetOrDefaultEnv("ENABLE_INFRA_METRICS", "true") == "true"
 }
 
-var KafkaSpanEval = GetOrDefaultEnv("KAFKA_SPAN_EVAL", "true")
+var KafkaSpanEval = GetOrDefaultEnv("KAFKA_SPAN_EVAL", "false")
 
 func IsDurationSortFeatureEnabled() bool {
 	isDurationSortFeatureEnabledStr := DurationSortFeature