The laravel-debugbar package is a really great tool to figure out what is causing your slow load times.
It can be added by adding:
"barryvdh/laravel-debugbar": "dev-master",
To your composer.josn file then:
'Barryvdh\Debugbar\ServiceProvider',
as a ServiceProvider in app/config/app.php
Then you can publish it using artisan (only to the environment you want to run tests on).
php artisan debugbar:publish
You can find better instructions on their github page here.
Thank you for the suggestion! Here are a few screenshots of the debugbar: