you can use my configure as below and install opcache extension
[global]
pid = /www/server/php/73/var/run/php-fpm.pid
error_log = /www/server/php/73/var/log/php-fpm.log
log_level = notice
[www]
listen = /tmp/php-cgi-73.sock
listen.backlog = 8192
listen.allowed_clients = 127.0.0.1
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = ondemand
pm.status_path = /phpfpm_73_status
pm.max_children = 300
pm.start_servers = 20
pm.min_spare_servers = 20
pm.max_spare_servers = 50
pm.max_requests = 2000
pm.process_idle_timeout = 5s
request_terminate_timeout = 100
request_slowlog_timeout = 30
slowlog = var/log/slow.log