Any testers can reveal if it is faster than Lion? whistle

Read many a review yet haven't found any reviews that mentions its speed vs Lion and/or SL.

I am still on SL. Never upgraded to Lion because it's slower than SL. At least on my MBP circa 2008. However, am thinking of upgrading to ML if it is faster than Lion and/or on the same speed level as SL.
_________________________