I also have the mindset that Roma will do better this season, there outplay during last season events at the early was too bad although you have said it all, winning the league last season was not achievable by Roma, they were even luck have ended the league in that 5th, it was surprisingly to see them achieve that, at some point last season I was very angry with Roma that made me to stop watching their matches, but am happy to have seen that they started this season very well but that does not mean that they will be the title winner this season, the seaon is still fresh for that, if they eventually continue like this, they mighy likely occupy a very good position in the league table at the end of the season.
I am not a fan of Roma dont get me wrong, but I wanted them to win because of one reason. Considering there past performances, Roma was that club you can vouch they will in most games they are supposed to it All of a sudden last season, I faced countless losses because included Roma to win in some games on my bet slip. Eventually, all they did was to draw or lost in the end, barely you see them win in games so i stopped betting on them
For the league title, I dont care if they win the title or not.