Laravel install package without composer

I'm just wandering if I can ask this here. I'm trying to install a package called Laravel Page Speed from my site that has already been hosted. My question is how can i install this package / any kind of package without composer into my hosted site. Or if i can install this with composer, how can i do this ?

I use Filezilla for ftp.

I've tried using the cmd's ftp command but its not working. Anyone have manage to do this ? Any answers will be helpful. Thanks

via Chebli Mohamed