I've experienced frequent frame drops in playback in the Plex app on Windows 10. This occurs with HD streams transcoded even to a low bitrate, as well as streaming at original quality.
This doesn't appear to be a buffering issue - more a playback issue. I was also experiencing it in Plex Web on Google Chrome but managed to fix it completely by enabling "Override software rendering list" in chrome://flags. So it seems to be an issue with not using available hardware acceleration.
Is there some way to enable this in the Plex Media Player app also? I know the hardware and network can handle streaming at original 1080p quality as evidenced by playback in Chrome.
Cheers for any help.