Yeah, I've got the same problem, every game is super laggy, it's been going on for quite a while. (Windows 10, Microsoft Edge)
Looks like a memory leak. If I watch the process in task manager the "Microsoft Edge Content Process" gets up to about 1G memory useage and the game lags badly. When it gets up to 2G the game will die.
Recently have been working around this by ending the task "Microsoft Edge Content Process" when it's leaking and then hitting the refresh button. Sometimes this fixes the issue and the games play fine after that, but that's not working tonight.
I didn't find the right solution from the internet.
