So my problem is that when I'm watching a twitch stream the CPU usage is almost 100% just from opera. Now if I switch tabs and only have it playing it the background (the tab is open and I can hear the stream) the CPU usage is only at 30-35% .
Is this intended, it there some way to not make it take so much CPU? It even starts to drop a lot of frames if I watch now.
I just upgraded to windows 10 on a bit older computer and it seems to have been a big mistake as I did not have this problem before.

I'm also using flash with the newest version of opera. I've never had this issue before, it just recently appeared. I'm fairly certain it is a software issue and not related to internet connection.

I seem to have a problem where a video will randomly start lagging behind, but the sound keeps going at the normal rate, so it unsyncs. If I pause the video, the sound will pause normally, but the video will jitter back up to the state the sound was in when paused. This happens at random times to random videos, but if I restart the browser, it tends to "fix" the problem for a couple of minutes. Am I the only one having this problem and What might cause it?