You need the alkaline fix TF4 or Kodak Rapid Fix. These are stronger fixes as Tgrain films are harder to fix. Fix that will clear Pan F may not clear T Max no matter how long you soak the film.
Film developed to the proper contrast for printing on #2 paper all print at almost the same time in my darkroom.
You are either overexposing, overdeveloping or under fixing or all three.