Upvoted. As a beginner guitarist, I find that Rocksmith’s approach doesn’t work well for learning songs. I prefer to turn up the difficulty to 100% and turn the tempo down to something I can play comfortably and then gradually increase the tempo. This has the drawback that the song sounds very different when played at 25%. It’d be nicer if they were more judicious in their choice of notes to play for their lower difficulty levels.
At the moment, I’m focussing on working on my timing by playing rhythm instead of lead guitar.
That's 100% the right way to do it and how traditional learning works (you just use a metronome and slowly work up to full tempo)
If you haven't already, please PLEASE choose the "invert" option for the string order. Your low pitched E string (the red one) should be on the bottom of the strings. It will mean that all your work will transfer immediately to both guitar tabs as well as conventional chord charts. The fact that Rocksmith is teaching people to train their muscle memory on upside down chord charts is so insane to me.