Amplify www and non www domains different load speed

Hello I have an angular app hosted with amplify. I’ve added custom domain. I can access my site with www and without. The issue is that when I go to www url app loads super fast. But when I go to non www url it takes 10x times more time.

As both urls lead to my site I assume that I set up dns correctly (on namecheap)

Could you please help me?