What exactly are you trying to accomplish in terms of "oomph"?
TW games aren't really that system intensive. A 1 year old or even a 2 year old PC should be able to max out the settings.
Are you talking about running in a resolution higher than what's on the Menu? Like 1600x1200 or something? If so, then, yes, you do need to edit the file(s). (CA really screwed the dog on this!) Do a search and you should come up with a thread with the info. If not, then I've got the info somewhere....
Luck!
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