Saint-Gobain interview questions

First interview with HR then with Hiring Manager. The first interaction was very productive and friendly. I actually recognize her feedback to me as highly valuable. The second interview , it was awkward and almost like the hiring manager didn't know why he was interviewing me. It felt like I was wasting his time and he questioned my reason of me applying in the first place. I would recommend that the hiring manager filter their candidates better before interviewing a person. It would save time for both parties.