First, 'cos it's a laptop where I run 3DX, which implies no options to upgrade its hardware. It would require a new laptop, and I'm not fan of this (I prefer computer, which I have at home). About the bloatware, I think this happens more 'cos bad management or lack of security by the user, than a problem of the OS itself -I can tell I've had a pretty low number of incidences when running 3DX with it, in opposition to other users.
Aaaanyway, as I say, the optimization seems to make it run a bit better.