Thread:Project:Support desk/when should I install the Internationalization php extension?/reply (2)

Given that it's MediaWiki, which is getting slow, I guess it might have something to do with that... ;-)

I know the installer tells you to install that extension. However, I don't know, if in your case its functions would be used: They are used to do charset conversions and in this regard the PHP extension is way faster than anything, which is written in PHP, meaning which is PHP code itself. However, I am unsure, if the extension would then be used in your situation.

If it was me I would just install it and see.