help request: Why is apisix_latency so large, far greater than upstream_ latency

[zh9980]

Description

route_id:
"578537459235685429"
start_time:
1765158919750
client_ip:
"124.202.185.46"
upstream:
"172.19.251.161:80"
service_id:
""
upstream_latency:
41
apisix_latency:
4693.9998950958
latency:
4734.9998950958

Environment

• APISIX version (run apisix version): 3.13.0
• Operating system (run uname -a):
• OpenResty / Nginx version (run openresty -V or nginx -V):
• etcd version, if relevant (run curl http://127.0.0.1:9090/v1/server_info):
• APISIX Dashboard version, if relevant:
• Plugin runner version, for issues related to plugin runners:
• LuaRocks version, for installation issues (run luarocks --version):

[Baoyuantop]

Hi @zh9980, we need you to provide your APISIX deployment structure, configuration information, and the method you used to collect this metric.