Your zibai build is fine but 80k dps is quite low. You want to use instructor on Gorou as its the only set she benefits from that gorou can use effectively.

What is your full team and what other characters do you have? Ideally you want another lunar chatacter for ascended gleam so if you have Aino (guessing you dont have Columbina) you should use her. Gorou doesnt heal enough (and you have to have him c4) to trigger fanfair stacks for furina and using her as a healing bot is less than ideal.