I've been playing through the remastered versions of the games and have noticed some performance issues. I don't remember what I experienced in DS1WME (besides the chest bug in the water area near the forge and not getting achievements sometimes), but its more obvious in DS2DE. I've noticed the game tends to lag a bit or just totally glitch out.

While in the lost temple, where you encounter the construct sentinels, the sentinels never appeared, only the normal constructs and after I defeated them, the combat music continued to play and I couldn't save or continue. I was forced to quit the game but thankfully it auto saved at the same spot I was at and it worked right this time.

In the realm of the dead, sometimes the characters move in dialogue but the actual voice dialogue doesn't play until a few seconds later, and sometimes mini cutscene sounds don't play until a few seconds after.

Obviously none of this is too significant, but for a remastered version (playing on Xbox 1), its just totally weird. Both the game and console are fully updated