Russian agency of real estate in Saint-Petersburg - Mirndv.ru. It was the first big project. But it wasn't big at the start, though.
From 1 website at Joomla me and my team create more than 300 websites only for that project! So excited! And of course, they all were super-fast loading!
We thought that the site must be fully loaded no more than 3 seconds. And we got it!