I have both DLCs installed and have not had any problems with Imp's TS (I am also playing in hardcoe mode--that's why we need these kinds of mods, right? Otherwise we can just change the timescale via console

), or do you mean it's not working in the DLC zones? Try reinstalling it (uncheck the esp, load game, save, exit, then recheck the esp, load game, reconfigure settings). Also, set it lower in the load order. In fact, I recall from Nevada Skies' readme that you should load any time/needs adjusters after the NS plugin. I use the "set hunger/third/sleep to scale with time" feature in Imp's TS, without fiddling with any of the numbers, and it seems to work well for me.