Should I try and update my A2 and replay my combo which stutters and locks up staring with the flying with Lois scene? Or should I just get a copy of the newer, non-combo version? Which one has proven more successful in not glitching?

Wrong forum, man :D

Go non-combo.

The whole film is really just Superman lifting heavy stuff. You're not missing much.
Singer still rocks though.

My bad. Do the update, replay the combo. Then get the non-combo.