Stoned Ape
Savant
Only if you're not interested in collecting 600+ XP from the fights while the doors are being broken down.
Battering Rams can be bypassed.I've found a lot of the in-combat events seem to take much longer.
I've just cleared the main city section in Drezen, and the battering ram parts took a really, really long time to smash down the doors. Additionally, the fight with the Balor continued for about 9 or 10 rounds with him on zero hit points before Greybor arrived. I don't remember it taking quite so long last time I did it.
Thing is, it was never an issue for me before, but this time they took me around 5-6 minutes per door due to long pauses between playing the animation for the troops using the battering ram for them to occasianally produce a vapid comment about their progress. Previously it would have taken half the time. It just feels frustrating standing around between waves watching a load of guys stand in front of a door doing nothing except shouting dumb sound barks about how the doors are shaking.