If Jesus was truly human when he was crucified, then the pain and suffering would become too much for him, as prolonged torture always does, and he would have eventually been unable to take anymore and would have used his god-powers (like turning h2o into wine, walking on h2o, etc.) to either detach himself from the body and the pain, or he would have ended the ordeal prematurely by dying sooner than expected. I believe at least one Gospel depicts Jesus dying sooner than one would expect.
If Jesus was god or demigod or some other cosmic being, then we should not assume that he experienced crucifixion and the resultant pain in the exact same manner that an ordinary mortal would. Indeed, with the powers of the unverse at his disposal, the burden of proof is on Jesus to show that he did not utilize any of his cosmic superpowers to numb his own pain. Hells bells, I would if I were on the cross.
Either way, Jesus, being secretly god, would have known that he wasn't going to permanently die and certainly wouldn't go to eternal hell...whereas those persons tortured to death by various churches would have had the fear of death and perhaps hell to experience, in addition to the indescribable pain inflicted by Christ's servants in the torture chamber.