How to reduce DNS query response time ?

Hi, I am facing a kind of weird issue with my backend api, all the query i send to it with a tool like Insomnia REST client or raw python code using requests lib take ~77sec to reach the server and return a response, but it is fast when i do the same query from the frontend app (via API Calls).

I tried this command from a forum, it seem related to the DNS.

My API is hosted on AWS (ECS) and everything is behind an Application Load Balancer, when i check the stat (Target Response Time, etc) everything is normal, i mean response are in average 400ms, that makes me think the issue is with the DNS system.

Thanks