F3框架本地化减慢了网站的速度

I've just implemented f3 localization on a platform I'm working on and it slowed down the website a lot.

On the setup.ini:

PREFIX=lang_
LANGUAGE=en
CACHE=TRUE

And then, I've a en.php file in the dict folder:

<?php
return array(
    'word1' => 'First word',
    'word2' => 'Second word',
    'word3' => 'Third word'
);
?>

To display words, I use: (and both work perfectly)

{{ @lang_word1}}

or

$f3->get('lang_word1');

The en.php file has almost 900 words / sentences and it looks like f3 loads it in every request and then the website gets super slow.

Any tips?

Cheers

What about to use PHP GETTEXT for translation?