Insert Statement Take too long to insert - MYSQL

CREATE TABLE `patient_last_examined` (
 `patient_last_examined_id` int(12) NOT NULL AUTO_INCREMENT,
 `patient_id` int(12) NOT NULL,
 `operator_id` int(12) NOT NULL,
 `section_name` varchar(255) COLLATE latin1_general_ci NOT NULL,
 `created_date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON
UPDATE CURRENT_TIMESTAMP,
 `status` enum('0','1') COLLATE latin1_general_ci NOT NULL,
 `save_or_review` int(11) NOT NULL COMMENT '1 = save, 2 = Reviewed',
 `section_complete` int(1) NOT NULL COMMENT '1 = section associated with
complete reviewed,0=section not associated with complete reviewed',
 `section_complete_id` int(11) NOT NULL COMMENT 'it store complete section pk
id',
 `formid` int(11) NOT NULL DEFAULT '0',
 `src_server` int(10) DEFAULT NULL,
 `parent_id` int(10) DEFAULT NULL,
 `timestamp` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
 PRIMARY KEY (`patient_last_examined_id`),
 KEY `section_name` (`section_name`),
 KEY `patient_id` (`patient_id`)
) ENGINE=MyISAM AUTO_INCREMENT=177622 DEFAULT CHARSET=latin1
COLLATE=latin1_general_ci




SHOW INDEX FROM patient_last_examined;
Table   Non_unique  Key_name    Seq_in_index    Column_name Collation   Cardinality Sub_part    Packed  Null    Index_type  Comment Index_comment
patient_last_examined   0   PRIMARY 1   patient_last_examined_id    A   177621  NULL    NULL        BTREE
patient_last_examined   1   section_name    1   section_name    A   59207   NULL    NULL        BTREE
patient_last_examined   1   patient_id  1   patient_id  A   25374   NULL    NULL        BTREE




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