I experienced some skippy playback issues with certain high-bitrate mkv compressed HD movies files, using the standard Windows 10 mediaplayer.
However, installing the latest k-lite video-codec pack(same as I’ve used for years…..just choose the “standard” package) from here https://www.codecguide.com/download_kl.htm
The performance was improved. Especially if you activate the “overlay-mixer renderer” in the mediaplayer classic player(that comes with the codec-pack). This setting is found clicking away using this path: View-Options-Output. And at the top in the “DirectShow video” dropdown selecter, choose the “overlay mixer renderer”. This will make the intel gfx take over more of the video processing and thus save up some overhead and power on the CPU.
Hope it helps somebody! 🙂