Can't edit that last message sorry
Fixed! it was not a folder but one of the bottom files, I just deleted some randomly .json and extensionless files and it fixed it, it was one of the first ones but don't know which one.
Tried installing ppapi flash and unchecking npapi flash and it seems to work nicely now, thanks!
ppapi flash download: http://labs.adobe.com/downloads/flashplayer.html
to disable npapi go to opera:plugins and click on show details, then unable that one
I had full-screen frame drops on Twitch; about 5 fps. This fixes it. Thanks.
Opera 26.0.1656.8, Windows 7 64-bit (WoW64).