Tons of lag previewing 4k drone footage. Have a decent comp. Please help

[christianb95900918]

Hey I'm trying to edit 4k drone footage in Premiere pro and the footage lags a ton in the preview window. I have it at 1/4 already and the lag is making it impossible to edit. I have a decent build, so I'm confused on why I'm getting tons of lag. My build is:

CPU - Intel i7 7700k 4.2Ghz (not overclocked)

Ram - 32GB
Storage - I only have a Samsung 850 Evo 250GB SSD, but I have most of my files on a 2TB hard drive. Still using about 60% of the SSD though.
Graphics - EVGA GTX 1080 8Gb

When I am previewing the footage, task manager puts Premiere at about 50% of my CPU and 4.5GB of memory.

I run games on ultra high quality with great fps, so I'm just confused on why I'm lagging so hard on 1/4 quality 4k footage. Do I not have a good enough build for 4k? Or is there some quick fix that I'm not doing? Appreciate any help, I'm not a huge software savvy guy so bare with me.

[christianb95900918]

Actually, I've realized that it only lags when I put an effect on it. But all I did was reverse the footage, so nothing really taxing. Playback without any effects runs lag free at 1/4.

Heres a link to my build, https://pcpartpicker.com/user/Cbach246/saved/#view=4xTsYJ

[exile1972]

All of the drone footage I've worked with has been H264 and therefore highly taxing to the computer system overall. If you're going to be doing a lot of editing of that footage perhaps the best approach is to transcode it to a better format for editing (i.e., pro res or dnxhd.)

[masai91]

Have you tried placing the footage in the SSD?

I believe the hard drive is the bottleneck here.

As I understand the best situation is having the footage on one SSD and the cache and projects on a separate one.

Since you have a nice build it's probably worth doing.