Import csv long file into sqlite database takes too long

I want to insert al large csv file (2500 rows) into a sqlite database. On my lokal computer (xampp) the import takes about 3 minutes. This project on a real linux webserver takes enless time. What is the best practices for importing large csv files? How can I speed up the insert procedure wirth CI?

Here is my code:

Database

PHP Code:

$db['default'] = array(
    'dsn'    => '',
    'hostname' => '',
    'username' => '',
    'password' => '',
    'database' => APPPATH.'/database/myDB.db',
    'dbdriver' => 'sqlite3',
    'dbprefix' => '',
    'pconnect' => FALSE,
    'db_debug' => (ENVIRONMENT !== 'production'),
    'cache_on' => FALSE,
    'cachedir' => '',
    'char_set' => 'utf8',
    'dbcollat' => 'utf8_general_ci', //utf8_unicode_ciutf8_general_ci
    'swap_pre' => '',
    'encrypt' => FALSE,
    'compress' => FALSE,
    'stricton' => FALSE,
    'failover' => array(),
    'save_queries' => TRUE
); 


Controller

PHP Code:

$this->load->model('db_model');

$csv = read_file('./folder/import.csv');
$new_csv = explode(PHP_EOL, $txt);

foreach($new_csv as $row){ 
    $array = explode(',', str_replace("\"", "", $row));
}

$this->db_model->emptyTable();

for ($i = 0; $i < sizeof($array)-1; $i++) {
    $myData = array(
        'var1'     => $array[$i][0],
        'var2'     => $array[$i][1],
        'var3'     => $array[$i][2],
        'var4'     => $array[$i][3],
        'var5'     => $array[$i][4],
        'var6'     => $array[$i][5],
        'var7'     => $array[$i][6],
        'var8'     => $array[$i][7]
    );
    
$this->db_model->setTimetable($myData); 


Model

PHP Code:

public function emptyTable() {
    $this->db->empty_table('tableName');         
}    

public function setTimetable($data) {
    $this->db->insert('tableName', $data);    
} 


Thanks for your help!