the title says 1060p, so i was curious
anyway how much is your ram?
what codec is the video? x265 known to be CPU expensive.
what player are using?
It was an mistkae.
I am using VLC/KMplayer/K-lite but still the video lags.
Try Checking The Task Manger when you play a 1080p a video. it will tell you what percentage of each of the resource is being used by your PC and the resource which is being used more than required is the one causing the problem. If all resources are being used normally than try using a different media player. You can check for your GPU drivers that whether they are perfectly installed or not.
Everything's on normal nothing special.