生成环境Mysql prepared 处理时间长求大佬指点

prepared 时间很长、其实是一个小表 里面就几条数据、有老板遇到过吗、是和我用了持久连接有关系吗

| PHP | 7.4.2 |
| Swoole | 4.5.2 |
| LaravelS | 3.7.4 |
| Laravel Framework [local] | Lumen (7.2.0) (Laravel Components ^7.0)

CREATE TABLE `tables` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'AUTO ID',
  `xxx` varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL COMMENT ',
  `xxx` varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '',
  `xxx` text COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '',
  `created_by` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '操作人',
  `created_at` datetime NOT NULL COMMENT '创建时间',
  `updated_at` datetime NOT NULL COMMENT '更新时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=69 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci ROW_FORMAT=DYNAMIC COMMENT='';

sql=select * from tables time=1681.45ms detail={“pretending”:”0ms”,”prepared”:”1377.58ms”,”bindValues”:”0ms”,”execute”:”303.5ms”,”fetchAll”:”0.1ms”}