This is still periodically a problem. I’ve kept an eye on the Chrome task manager when it does happen and I don’t see anything that looks like spikes although I’m not familiar with this tool. I see the LipSurf extension CPU fluctuate around single digits, although there was one time today where I saw it go up to double digits, see below.
Another issue I’ve seen happen is LipSurf gets stuck on the wrong language in WK reviews, even though the UI appears to be in the right language, I took a couple of screenshots to show what this looks like, you can see I’m saying trying to say the English but it’s being interpreted as Japanese:
The reason I think this might be related is that when this happened I saw LipSurf hovering between 15-20 the task manager, and after I waited a while, it would start accepting the correct language. Interestingly turning lip surf on and off didn’t actually fix it, the language looks like it’s set to the correct one for the current card but it was still misinterpreting
Anyway I hope this is useful
edit: oh and my internet is definitely still working when this happens I end up procrastinating on some other website