Woah you chose roux? dominant one is cfop, but I respect your opinion, although since you are a bit new here are some tips for roux, practice your M and M' fingertricks, there are a lot of those during roux since you make 2x3 blocks on the sides and you have free space in the middle, The only hard part in my opinion for roux is making the blocks, while cfop is more beginner friendly, roux is something that is sort of challenging to learn, I learned roux but it isn't my dominant method. Your pb is faster than my single even though I do cfop. Anyway, happy cubing!