Airspace requirements in Australia, used to dictate domestic jet aircraft would be at 20 track miles to run at 300kts & 5000'. ATC could further ask for a 'high speed' descent. This involved a 320 ( CFM engines importantly ) being at 5000 plus feet & 340kts and again, 20 track miles to run.
LOC interception at 30 degrees was routine. Anything greater could be accomplished by a combination of slowing down & finessing the intercept in HDG mode. LOC capture assistance function would have managed NAV nicely turning inside a waypoint to facilitate interception.
Can't recall the intercept parameters; they were certainly pushed. Self-recovery by the aircraft in a LOC overshoot was quite good. Better than FCOM 4 I recall.
