Would this fix #6149 ? Or performance is still somehow the same?

Yes, it should be better. Using the imagick extension can actually be faster than CLI in many cases because we load and manipulate images entirely in memory.

This may not be true only for very large files.

It would be great if someone with a real-world use case could check this out.

I ran some tests with a PNG image that was 6.7 MB in size.

$iterator = new \CodeIgniter\Debug\Iterator();
$iterator->add('imagick', static function () {
    service('image', 'imagick')
        ->withFile(WRITEPATH . '/test/mypic.png')
        ->flip()
        ->resize(500, 500, true)
        ->text('Copyright 2025 My Photo Co', [
            'color' => '#fff',
            'opacity' => 0.5,
            'withShadow' => true,
            'hAlign' => 'center',
            'vAlign' => 'bottom',
            'fontSize' => 20,
            'padding' => 20,
        ])
        ->save(WRITEPATH . '/test/image.jpg');
});

return $iterator->run(10);

Thank you for the review @paulbalandan, and everyone else for the feedback.

Btw, missing required ext-imagick in composer?

@ddevsr that already on "suggest" section

should be only when using the handler, if not, it not required.