Thank you, but your post is somewhat patronizing. Yes, I have accounted for each Chrome process. And you forgot to tick one of the 'we're in denial that FF sucks' boxes...what plugins are you using (aka blame the plugins).

I'm apposed to hacking the settings and installing 32-bit versions. It should give somewhat acceptable performance out of the box. I'm not adding bandaids, FF has wasted enough of my time.