iPhone Slow Motion Workflow

Hello - does anyone have a solid workflow for getting 120/240fps video from an iPhone into Resolve? I know this is mostly an Apple question, but hoping someone's got a solution. I've tried a whole bunch of ways to transfer the clips - cable/DropBox/apps - and then be able to speed ramp, but Apple kinda prefers to keep it in its own ecosystem. The files usually come into Resolve NOT at 120fps.

Current solution is to add all the clips to iMovie, slow them down then export the full movie to an editable format for Resolve. Obviously this isn't particularly speedy or efficient.

Any tips welcomed!

I can import the files from my iPhone without any problem. Which version of Resolve are you using?
They even come in as 30 fps, already defined for slo-mo.

The transfer is easy too, either use AirDrop or an USB cable.

That's part of my problem - I edit on PC so switching between iPhone and PC is a pain.

BUT! I've just found https://snapdrop.net/ which seamlessly transfers files between iPhone and PC without any of the Apple tags, i.e. a straight 240fps file. Seems super reliable too, unlike a stack of other apps I've tried.