Interviewer not sure what they want in answer and gave feedback like person relies on technical concepts. I'm not sure whether they want candidate to speak code in verbal interview or something else. total waste of time.

General talk about previous project and how you handle most difficult task and all. The interview was continued about 1 hour. They asked about performance improvement. I thought it was perfect from my side but at the end they gave feedback like person is more relies on lazy loading and other stuff. so I really can't get it what they want.