It got this was on my desktop too, I gave up trying to use it. At one point it was using up >10GB of my 32, and almost pegging all 12 cores.
I have the latest revision, before anyone asks.
I saw similar problems, running the web version under the Edge browser, on my desktop, eventually it would basically tank my machine.
Running on Chrome, it's fine indefinitely, a non-issue. I was profiling the Edge issue for awhile, using ResourceMon but even that was a huge pain, given the state my machine got into.
It's a little bit "odd", having to use Chrome to post on WindowsCentral, but for now, I'm sticking with it. Maybe after the anniversary updates, I'll try again.