Actually, this isn't exactly related to the event, but close enough?

So like, one week ago-ish, Chrome released version 86. This isn't an actual quote from Google's own page, but fuck it, close enough:
Throttling to the background tab
Originally intended to be included in Chrome 85, background tab throttling is available in Chrome 86.
Tabs that runs in the background are limited to a maximum of 1% of CPU time after being idle for five minutes or more.
Tabs are allowed to “wake up” once a minute in the background.
Hope the feature improves performance when you have a lot of tabs open at the same time.
Google always strives to limit CPU usage from open tabs.
What this means is that you can't leave Kamihime AABing in a tab that you've tabbed out of anymore. Now, to begin with, if you intend to play Kamihime, you really, really, REALLY should've disabled Chrome updates years ago, but if have updated to 86, then here's the solution for this shit:
chrome://flags/
Search for occlusion
"Calculate window occlusion on Windows" set to disable
Now, this might have unfortunate side effects like high CPU usage, but what can you do? Google haet gaems such as these, so again, disable auto-updating or get fucked.