Box2D - weird performance issue

Hi everyone

The question is about Box2DTestBed test which is included in “tests” app.
While running on my old Milestone (same as Droid, OS v 2.1 update 1) it shows respectable fps (35-40 in “vertical stack” test for example) and its OK. But on brand new HTC Desire HD (OS v 2.3.3) fps drops dramatically (2-3 in the same “vertical stack” test) o_O.

Any suggestions?

thanks in advance

P.S. All the others tests (non-Box2D) run perfect.