Intervention Image rounded corners upload

I'm trying to upload my files as circles, but I can't make it work. I've seen some topics about applying a mask to the image, but when I apply the mask it takes way to long and the server shuts the request down.

I'm using the Intervention Image library for Laravel

My code is as follows:

$identifier = "{$this->loggedUser->id}" . str_random(9) . ".{$file->getClientOriginalExtension()}";
$mask = $this->createCircleMask(200, 200);
$thumbMask = $this->createCircleMask(40, 40);
Image::make($file->getRealPath())->mask($mask)->save(public_path("images/profile/{$identifier}"));
Image::make($file->getRealPath())->mask($thumbMask)->save(public_path("images/profile/thumbs/{$identifier}"));

The createCircleMask method looks like this:

public function createCircleMask($width, $height)
{
    $circle = Image::canvas($width, $height, '#000000');
    return $circle->circle($width - 1, $width / 2, $height / 2);
}