Same here, disabling Hardware Acceleration is not a solution.

I'm unsure, youtube videos appears to be fine, on Twitter videos there is random small freezes when i watch it on one of my 1080p60hz monitor, if i move opera to my main 1440p144hz monitor the little freezes go away.

I tried to disable every extensions but it didn't changed anything, also i have no power saving feature enabled but the issue does not appears on the others browsers.

My Video Card driver is up to date: 17.5.2, no problems at that side.

Hello

I'm having the exact same issues as described in this link: https://forums.opera.com/topic/16197/twitch-video-audio-out-of-sync

And the stream doesn't seems to be very smooth, there is some sort of video "lag" that makes the sound out of sync.

I don't have those issues with others browsers.

In the link they talk about multi monitors too, i do have a multi monitor setup
1: 1440p144hz
2: 1080p60hz
3: 1080p60hz

I'm watching twitch streams on the 1080p60hz monitors

Version : 45.0.2552.888 (PGO) - Opera est à jour
Flux de mise à jour : Stable
Système : Windows 10 64-bit (WoW64)