I don't think it really matters.. If i'm not wrong most schools normally do IR first and then CPL or opposit
You said that you had
125 hours, if i was you and could choose i will start IR as for CPL you need 150 hours, seems there is no other outway for the moment and if it's
taking forever as you said, don't think twice, go for IR. Simple, eh?
Good luck and congratulations for your succed in your exams.
/niko