Running 2 is enough to slow it down to a crawl unless I'm not doing anything else and just letting agents work.

I've definitely tried optimizing with lower memory as you suggest but the margin is so small given normal usage of the computer at the same time that it really doesn't make a difference unfortunately.

So that's 2 emulators + a few terminals of pi/Claude, Firefox open, vscode and usually docker but nothing too heavy there.