I've noticed how hard people find running to a higher cadence. This idea may help. Try using a clip on metronome or finnis tempo trainer. This can be set to bleep at the cadence you are aspiring to. I've tried it and found it does take a bit of getting used to. A small incremental change to make a gradual lasting increase is probably easiest.
The hard bit for me is 'hearing' when my foot hits the floor, and linking this to the beat of the metronome. One trick I used whilst pace counting in orienteering was to tie a small bell to one foot so it jingled each time my foot struck the ground.
This of course means you run along whilst bleeping and jingling. It's almost like being a running one man band. You never know it may be the catalyst you need to become a super efficient runner. Or maybe a fast-moving musician.
Pass it on