Adding a multiple frame rate videos to the same project

I am creating a video and the current fps settings are set at 60fps as most of my videos are that. I want to include some slow motion videos taken on my iPhone X which are 240fps. When I import them into Resolve 12.5, they seem to be converted or changed?

Is there a way to make this work. Trying to slow down the 60fps version just doesn't look as good as the 240fps original.

Also noticed that I could change to Resolve 15, would that help?

Is it not possible to have both 240fps and 60fps videos in the same project?

Right click on those clips in the Media Pool, go to "Clip Attributes" and change their frame rate. Done
BTW, contrary to popular belief, Resolve has a manual…