I agree with needrain. Roots looks good to me as well.
Just be patient.
Btw, are you always keeping this plant indoors? If so, just continue to position by your sunniest window, if south facing even better. Do quarter turns every few weeks as well to allow light on all sides of your plant.
Typically many succulents perk up again once Fall season is here after the ever harsh summer heat, provided it has been hardened to outside growing. In your case, if it is to be inside growing, then growth reaction is much slower. So hopefully in time after this repot your plant responds better. It may continue to go slow since light levels and intensities will soon be much shorter and weaker.
You are by now used to longer watering intervals. So after giving that plant a thorough watering, let it dry out.
Patience will be your friend. Good luck! As long as there is no soggy area anywhere all will be fine.