Incidentally, I also found that SOHO seemed snappier than Standard after a fresh install...
Of course, this is completely subjective and probably contaminated by the placebo effect.
After a while, though, KDE started showing its weight.
Now I'm back at standard, but I wondered if xfce in SOHO wouldn't be faster than in Standard.
If that is true, or why that should be the case, I have no idea. Any performance improvements in SOHO?