I've also realised my 2016 Macbook Pro 13" cannot handle the h265 10 bit files without stuttering. I would suggest editing with proxies or converting to Prores (Optimised Media if you are using FCX). Both of these seem to run smoothly without dropping frames.
As far as I know, 10bit is only available with h265 and is not determined by the framerate, but rather the picture setting, as far as i know:
You must select either Dlog or HLG for 10 bit, and these options can only be used with h265. Normal picture profile is 8 bit and uses h264:
Dlog h265 HQ - 10bit
Dlog h265 Full FOV - 8bit (although some people seem to be saying the full fov footage also shows as 10 bit under the metadata when loaded into Davinchi - can anyone confirm this?)
HLG h265 HQ - 10 bit
HLG h265 Full FOV - 8 bit (again can someone confirm this?)
I don't actually own a pro, so people can correct me if I'm wrong here, I'm just going by what I've read & gathered from videos.
Also you can download both 8 and 10 bit straight from camera footage here to try out in your editing program: