TestCase - Performance: "protected $seed = true;" vs "$this->seed();"

[robsontenorio]

I just noticed a huge difference of perfomance. Am I missing something?

This is TWICE FASTER...

abstract class TestCase extends BaseTestCase
{
   use CreatesApplication, RefreshDatabase;

    protected $seed = true;
}

Than this...

abstract class TestCase extends BaseTestCase
{
   use CreatesApplication, RefreshDatabase;

    public  function setUp(): void
    {
        parent::setUp();
        $this->seed()
    }
}