Sadly, I felt the same. After the scene where the Emperor reveals himself and how the story unfolds there, I found myself just rushing towards the end. Act 3 just palys out in an entirely messy way where you are bombarded with quests who are filled with inconsistencies and non-sensical plot progressions. Act 3 was the first time I found myself sighing at having to replay encounters because I did not look forward to the outcome anymore..