If not for mods, I would have not continued to play TS3. I played mod free for a long time and then my saves would get buggy and unplayable after a while. They would lag, freeze and I would have to abandon them after so long. Then I looked into Nraas mods and put those in and things ran much more smoothly. I think that was back in 2011. Then I added more and more mods, but Nraas ones were the first I put in because I was having performance issues and those fixed my problem. I could never play without them.