On a low power machine you should use proxies. Davinci Resolve free version only supports patented codecs if the OS supports them. Microsoft and Apple pay licensing fees to use these codecs.
reply> On a low power machine you should use proxies.
replySure, but this same hardware was able to edit 1080p / 30 fps videos on Windows without performance issues and not needing to use proxies. Camtasia let me edit videos liquid smooth even if I added different effects. I never encountered a single video that lagged when scrubbing, even 90 minute videos with a dozen tracks. Resolve was also fine.
Kdenlive on Linux is mostly ok but even adding the most basic effects will cause a slideshow when scrubbing and during normal playback in the preview window. I don't know how Resolve will run on Linux since I haven't attempted to install it due to the codec issues (a deal breaker for me on its own).