There is not a huge amount of point in following flight directors on a manual ILS, except during a very turbulent approach perhaps. You have the ILS indicators for that. If you look out of the window and not at your ILS indications, that makes it a visual approach.
Having said that, I am definitely not perfect and I am definitely not preaching !
Regarding the speed trend arrow; that does not tell you what the N1's are doing. The speed trend is a cue for one to look at the N1/EPRs to see if the engines are being commanded correctly (if A/THR is being used). It only takes a second to look.