Well after using the official 4.1 for several days now I'm happy to report the only issue I had (it was never slow on my machine) is resolved. No more 99% usage on my 24gigs of memory! I'm back to never seeing more then maybe 40% usage with several browsers open, LR4.1, CS6, bridge, and Elements 10 (all being used).
I do find it odd when people using 2 and 3 year old machines wonder why it's slow... you buy the most up to date camera and software, well you have to update computers, to current technology, every 2 years unless you spend $3k+ in which case you might get 3 years outta that machine. That's just for the box people, a good editing monitor is going to run another thousand minimum. But that's what it takes to run this software and get competative results with your peers. Photography isn't a cheap person's hobby/business. You get the best results from the best equipment. Or I may be full of it, wouldn't be the first time! I still hold on to the belief I am going to find a mint 50mm 1.0L at a garage sale on an old body for $5 hehe. woot!
LR4.1 and CS6 have my vote in the "kick ass" column.