Boyfriend won’t orgasm

I started having sex with my boyfriend (we’ve been dating a year now) and he can make me cum super easily, but I haven’t been able to make him cum as fast as he can for me. I feel really bad and like he’s not into it or something. Or maybe I’m not doing it right? I need tips. He always says I need to do things faster but maybe my neck and hips hurt after awhile. What do I do?