I truly hoped the latest update would have fixed the severe lag Opera has exhibited lately, but no. It is very, very slow at times when clicking on a link. I often have to stop it, and try again. That sometimes works, and sometimes it doesn't. It happens on many pages, and makes reading forums an exercise in frustration. Often nothing happens after clicking a link, it just spins, showing it is trying to load.
I have FIOS with 200 Mbps, provisioned for 300 Mbps, and the speed is confirmed with Speedtest. I have no issues with Firefox, or Safari. I would much rather be using Opera, but I have had to go back to Safari until Opera is fixed.