Hello, after upgrading from version 54 to 55, there was an annoying error with screen shifting while playing a browser game. Earlier in version 54 this error did not occur.
I recorded this bug on this video

I dreamed that the patch improving high CPU usage has already been released, but I woke up and it's still gone.

@davidos The topic has already been exhausted, it remains to wait for the patch.

@no9or9 Funny, because I read this article on dobreprogramy.pl but I did not look at the comments.

it seems like the problem is animation.

Strange thing. After upgrading from 64 Opera to 65 versions during the first run, the extension called F.B (FluffBusting) Purity was removed by itself. If I did not have a backup of the opera profile folder, my extension settings would be lost

@thegeneral Mute the sound in the youtube tab you are watching and watch if the CPU usage is less.
Read carefully what is in the subject what I sent you.

@thegeneral
My problem seems similar to yours.

https://forums.opera.com/topic/36190/high-cpu-usage-watching-youtube

I came to the conclusion that there is something wrong with the sound in the latest version of the opera.

@nvmjustagirl
I examined the case by comparing Opere 63 and 64 and it turns out that you are right with this sound.

I listened to the mp3 file from the hard disk through opera 63 and 64:
opera 63 5-10% cpu
opera 64 47-60% cpu

Youtube:
opera 63 30-35% cpu
opera 64 60-70% cpu
opera 64 25-30% cpu mute tab

@nvmjustagirl
For me, the development version uses as much CPU as stable. Muting the tab actually helps, but why watch youtube without sound ...